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Are you looking for the Bass Guitar Truss Rod Adjustment? If so, you’ve come to the right place.

Choosing the Bass Guitar Truss Rod Adjustment can be difficult as there are so many considerations, such as Martin, Fender, Andoer, ESP, Stewart-MacDonald, Taylor Cable, Armstrong. We have done a lot of research to find the top 20 Bass Guitar Truss Rod Adjustment available.

The average cost is $18.18. Sold comparable range in price from a low of $4.32 to a high of $77.89.

Based on the research we did, we think Fender Bass Truss Rod Adjustment Wrench is the best overall. Read on for the rest of the great options and our buying guide, where you can find all the information you need to know before making an informed purchase.

20 Best Selling Bass Guitar Truss Rod Adjustment (20 Sellers)

Product Image Product Name Features Check Price
    • T-style
    • Adjustable for neck
    • For american series and american deluxe bass
    • Color: nickel
    • Dimensions: 0.03×0.03×1.00 in
    • Weight: 0.03 lb
    • Truss rod 25" for guitar builders – two way adjustable rod is for inserting in neck while building. similar to many oem style rods. 25" long – this product may…
    • Truss rod for guitar neck
    • 14 1/4" overall length
    • Metal dual action adjustable rod
    • Precision, smooth stainless steel without the annoying, messy oil found on traditional feeler gauge sets
    • Laser etched sizes (in. and mm) and instrument type that won't rub off
    • Easy to follow instructions printed right on the handle and an innovative pick capo to assist
    • Truss rod for guitar builders. two way adjustable rod is for inserting in neck while building. similar to many oem style rods. 24" overall length specifications: 24" length two way…
    • Make sure this fits by entering your model number.
    • 6 allen key sizes: 5/32", 9/64", 1/8", 3/16", 4mm, 5mm.
    • 3 socket wrench sizes: 1/4", 5/16", 7mm and each includes ph#1 magnetized screwdriver for truss rod covers.
    • Country of origin: usa
    • Material: metal
    • Type: wrench
    • For taylor nylon guitars
    • Use it to adjust for different string gauges
    • Dial-in the right feel for your playing style
    • 3/16" "t-style" ball-end hex (allen) with rubber grip
    • Used with american deluxe, american standard, and highway one (us) basses
    • A genuine fender truss rod wrench is exactly the right tool to use when setting up and maintaining your fender bass
    • Truss rod 12 1/4" for guitar buildersdual action adjustable rod is for inserting in neck while building. dual action rod 12 1/4" longthis product may contain a chemical known to…
    • Truss rod hexagonal wrench set for most kinds of acoustic guitar, electric guitar and bass. it helps you adjusting guitar parts efficiently. 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, can be…
    • Color: light green.
    • Material: metal.
    • Size: about 45.1×0.9×0.9cm/17.76×0.35×0.35inch.
    • To help keep '70s-style electric guitar and bass necks straight and true, fender offers genuine "bullet"-style truss rod nuts.
    • 1/8" hex adjusting head.
    • Used in most '70s era and '70s reissue (us and mexico) instruments with a headstock adjusting truss rod.
    • Dimensions (overall): 1.2 inches (h) x 3.3 inches (w) x 5.5 inches (d).
    • Weight: .2 pounds.
    • Electronics condition: new.
    • Everything you need to measure and adjust your neck relief on all martin guitars models except dss-2018, omss-2019, modern deluxe series
    • Comes with a precision truss rod gauge, pick capo, 5mm truss rod wrench
    • For martin or other guitar which couldn't reach it with a regular hex wrench truss rod adjustment.
    • Two way l-shape truss rod adjustment tool.
    • Made of carbon steel, durable and highly wear-resistant.
    • The truss rod wrench is 8mm(0.31inch) socket, with 0.5cm(0.2inch) screwdriver bit on the end.
    • Made of high quality metal, no easy rust and corrosion, durable and strong.
    • Small size, easy to use and convenient for carry anywhere.
    • The truss rod gauge and string action gauge combo pack contains musicnomad's two most popular precision gauges. measuring your neck relief and string action height are the two most common…
    • Music nomad truss rod neck relief measure and adjust kit for taylor guitars standard – the musicnomad truss rod neck relief measure and adjust kit for taylor guitars simplifies the…

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Fender Bass Truss Rod Adjustment Wrench
$9.77
4.8
Reviewers Noted:
Easy to use . Quality build
Features:
  • T-style
  • Adjustable for neck
  • For american series and american deluxe bass
Ebay
Fender Bass Truss Rod Nut – 5/16" Hex Adjustment
$4.32
4.8
Reviewers Noted:
Visual appeal . Craftsmanship
Features:
  • Color: nickel
  • Dimensions: 0.03×0.03×1.00 in
  • Weight: 0.03 lb
Adorama
Truss Rod Two Way Steel 25 Adjustable Long Scale Bass
$12.49
5.0
Reviewers Noted:
Well made . Durability
Features:
  • Truss rod 25" for guitar builders – two way adjustable rod is for inserting in neck while building. similar to many oem style rods. 25" long – this product may…
Bitterrootguitars
Guitar Truss Rod 14 Dual Adjustment Luthier
$9.99
4.9
Reviewers Noted:
Craftsmanship
Features:
  • Truss rod for guitar neck
  • 14 1/4" overall length
  • Metal dual action adjustable rod
Bitterrootguitars
Music Nomad MN600 Precision Truss Rod Gauge
Features:
  • Precision, smooth stainless steel without the annoying, messy oil found on traditional feeler gauge sets
  • Laser etched sizes (in. and mm) and instrument type that won't rub off
  • Easy to follow instructions printed right on the handle and an innovative pick capo to assist
Buy On Amazon
Guitar Truss Rod 24 Two Way Bass 10 Pack
$77.89
5.0
Reviewers Noted:
Well made . Durability
Features:
  • Truss rod for guitar builders. two way adjustable rod is for inserting in neck while building. similar to many oem style rods. 24" overall length specifications: 24" length two way…
Bitterrootguitars
Music Nomad MN235 Premium Guitar Tech Truss Rod Wrench Set
Reviewers Noted:
Ease of use
Features:
  • Make sure this fits by entering your model number.
  • 6 allen key sizes: 5/32", 9/64", 1/8", 3/16", 4mm, 5mm.
  • 3 socket wrench sizes: 1/4", 5/16", 7mm and each includes ph#1 magnetized screwdriver for truss rod covers.
Buy On Amazon
Martin 2-Way Truss Rod Wrench
$7.89
5.0
Reviewers Noted:
Ease of use
Features:
  • Country of origin: usa
  • Material: metal
  • Type: wrench
Sweetwater
Taylor Truss Rod Wrench Universal
$9.99
4.9
Reviewers Noted:
Ease of use
Features:
  • For taylor nylon guitars
  • Use it to adjust for different string gauges
  • Dial-in the right feel for your playing style
Sweetwater
Fender Truss Rod Adjustment Wrench, 3/16" T-Style
$6.43
4.8
Reviewers Noted:
Easy to use . Quality build
Features:
  • 3/16" "t-style" ball-end hex (allen) with rubber grip
  • Used with american deluxe, american standard, and highway one (us) basses
  • A genuine fender truss rod wrench is exactly the right tool to use when setting up and maintaining your fender bass
Adorama
Guitar Truss Rod 12 Dual Adjustment Luthier
$9.99
4.9
Reviewers Noted:
Craftsmanship
Features:
  • Truss rod 12 1/4" for guitar buildersdual action adjustable rod is for inserting in neck while building. dual action rod 12 1/4" longthis product may contain a chemical known to…
Bitterrootguitars
High Quality 9pcs Adjustment Bass Guitar Wrench Set Repair Tool Guitar Bass Neck Bridge Screw Truss Rod, Men's, Size: One size, Other
$8.00
Features:
  • Truss rod hexagonal wrench set for most kinds of acoustic guitar, electric guitar and bass. it helps you adjusting guitar parts efficiently. 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, can be…
Walmart
Nuolux Guitar Rod Neck Truss Relief Adjustment Bass Electric Single Action Acoustic Tool Strat, Size: 17.76×0.35×0.35 in
$8.27
Features:
  • Color: light green.
  • Material: metal.
  • Size: about 45.1×0.9×0.9cm/17.76×0.35×0.35inch.
Walmart
Fender Bullet Truss Rod Nut
$7.99
4.8
Features:
  • To help keep '70s-style electric guitar and bass necks straight and true, fender offers genuine "bullet"-style truss rod nuts.
  • 1/8" hex adjusting head.
  • Used in most '70s era and '70s reissue (us and mexico) instruments with a headstock adjusting truss rod.
Fender
Music Nomad MN611 Truss Rod Neck Relief Measure and Adjust Kit for Gibson and PRS
$24.99
Features:
  • Dimensions (overall): 1.2 inches (h) x 3.3 inches (w) x 5.5 inches (d).
  • Weight: .2 pounds.
  • Electronics condition: new.
Walmart
Music Nomad MN612 Truss Rod Neck Relief Measure and Adjust Kit for Martin Guitars
Features:
  • Everything you need to measure and adjust your neck relief on all martin guitars models except dss-2018, omss-2019, modern deluxe series
  • Comes with a precision truss rod gauge, pick capo, 5mm truss rod wrench
Buy On Amazon
Vencetmat 4mm & 5mm Truss Rod Wrench, Allen Wrench Tool Ball End for Martin Acoustic Guitar Truss Rod Adjustment and Deep or Narrow Truss Adjustment.
Features:
  • For martin or other guitar which couldn't reach it with a regular hex wrench truss rod adjustment.
  • Two way l-shape truss rod adjustment tool.
  • Made of carbon steel, durable and highly wear-resistant.
Buy On Amazon
Creative-Idea Electric Guitar Truss Rod Box Wrench Tool Metal 8mm Outer Diamete 8cm Length Silver
Features:
  • The truss rod wrench is 8mm(0.31inch) socket, with 0.5cm(0.2inch) screwdriver bit on the end.
  • Made of high quality metal, no easy rust and corrosion, durable and strong.
  • Small size, easy to use and convenient for carry anywhere.
Buy On Amazon
Music Nomad MN614 Guitar Truss Rod Gauge & String Action Gauge Bundle
Features:
  • The truss rod gauge and string action gauge combo pack contains musicnomad's two most popular precision gauges. measuring your neck relief and string action height are the two most common…
Buy On Amazon
Music Nomad MN610 Truss Rod Neck Relief Measure and Adjust Kit for Taylor Guitars
Features:
  • Music nomad truss rod neck relief measure and adjust kit for taylor guitars standard – the musicnomad truss rod neck relief measure and adjust kit for taylor guitars simplifies the…
Buy On Amazon

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1. Fender Bass Truss Rod Adjustment Wrench

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Product Details:

A genuine fender truss rod wrench is exactly the right tool to use when setting up and maintaining your fender bass. 3/16" "t-style" ball-end hex (allen) with rubber grip. used with american deluxe, american standard, and highway one (us) basses. a genuine fender truss rod wrench is exactly the right tool to use when setting up and maintaining your fender bass. 3/16" "t-style" ball-end hex (allen) with rubber grip. used with american deluxe, american standard, and highway one (us) basses.
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Specifications:

Mouthpiece Included No
Case Included No

Reviews:

I bought a used American standard 5 string pbass a few years ago and It didn't have this with it. It cannot fit a normal Allen wrenches in the slot, so I bought this one and it fits right in.ryathiesie-0
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Getting into self-servicing your instruments you need lasting tools and this is just that. Great feel and quality construction.
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Right now I have had a lot of time at home so I have been doing a lot of much needed repairs to my basses. This tool is great and was put straight to work right out of the packagecjmo_76
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2. Fender Bass Truss Rod Nut – 5/16" Hex Adjustment

Shop on Adorama
Shop on Reverb

Product Details:

Guitar repair long island is an authorized fender dealer, so buy with confidence. as such, this item may arrive without retail packaging. fender does not give the specs of the internal thread, but i have measured a m5x.9 tap to be a good fit.
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Specifications:

Finish Standard
Year 2010s

Reviews:

Great quality highly recommendedmike2718
Well made truss rod-nut with 12-28 thread for MIM (made in Mexico) Fender 5-string basses.filanges419
Great bullet style truss rod nutdra8927_04ok6saj7n

3. Truss Rod Two Way Steel 25 Adjustable Long Scale Bass

Shop on Bitterrootguitars

Product Details:

Truss rod 25" for guitar builders – two way adjustable rod is for inserting in neck while building. similar to many oem style rods. 25" long – this product may contain a chemical known to the state of california to cause cancer and/or birth defects or other reproductive harm. – p65warnings.ca.gov
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Reviews:

I would not buy these truss rods from anyone but hildrethja. Shipped very fast. Seems like the ones I get here have an additional layer of QC… in generally cleaner welds and smoother turn. Def the best bang for your buck.mistermikev
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Works well, low profile allows me to cut thinner profile necks. Shipping is fast.chipdiablo
Good solid design, good proce.noisemachine

4. Guitar Truss Rod 14 Dual Adjustment Luthier

Shop on Bitterrootguitars

Product Details:

Truss rod 14" for guitar buildersdual action adjustable rod is for inserting in neck while building. dual action rod 14" longthis product may contain a chemical known to the state of california to cause cancer and/or birth defects or other reproductive harm.
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Reviews:

haven't installed yet but seems to work OK. wish it was a little smoother turning but out of a truss rod pocket it may be prone to bind quickly. I believe it will be fine. Wish it came in a headstock adjust configuation. will use it this way it just will adjust backwardsmwinque1
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it is easy to install and works well. I highly recommend it. it comes with allen key which is very helpful.splo81
Came in a well packed package. As described!lldj76

5. Music Nomad Mn600 Precision Truss Rod Gauge

Buy On Amazon
Shop on Walmart

Product Details:

Being able to measure neck relief is a critical step in the setup process. musicnomad's precision truss rod gauge will help do it quickly and accurately. the gauge comes equipped with the three most common relief measurements (.006”, .008”, .010”). instructions printed right on the handle make it extremely easy to dial in neck relief. it’s perfect for electric, acoustic, classical and bass guitars and features laser-etched markings that take the guesswork out of which gauge to use for each instrument. it’s made of premium stainless steel construction without the annoying, messy oil found on traditional feeler gauge sets. it also includes an innovative pick capo to assist in the process.
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Reviews:

Does exactly what I needed. Little flimsy feeling but the price is right.Dwight c.
A simple and easy way to adjust the truss rod on my guitars — a great tool to add to my collection, and reasonably priced.littlepaul64
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It comes with a pig to use as a capo but you're better off just using an actual capo if you have one and then holding it with your finger at the 12th fret. Very easy to use. If you're curious if your guitar is as easy to play as it can possibly be by this gauge and find outJussie
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6. Guitar Truss Rod 24 Two Way Bass 10 Pack

Shop on Bitterrootguitars

Product Details:

Truss rod for guitar builders. two way adjustable rod is for inserting in neck while building. similar to many oem style rods. 24" overall length specifications: 24" length two way adjustment 4mm allen key head body is wrapped in blue shrink wrto allow for gluing. 25" w x 0. 43" h.
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Reviews:

I would not buy these truss rods from anyone but hildrethja. Shipped very fast. Seems like the ones I get here have an additional layer of QC… in generally cleaner welds and smoother turn. Def the best bang for your buck.mistermikev
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Works well, low profile allows me to cut thinner profile necks. Shipping is fast.chipdiablo
Good solid design, good proce.noisemachine

7. Music Nomad Mn235 Premium Guitar Tech Truss Rod Wrench Set

Buy On Amazon
Shop on Hiltonmusiccenter

Product Details:

Work on or got a lot of guitars? stop fumbling around looking for the right wrench. bonus features include: laser etched sizes on each wrench, 3 magnetized screwdrivers for small truss rod cover screws and the socket wrenches and spoke wheel tool slide into music nomads octopus handle (sold separately) for additional leverage and comfort.
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Specifications:

Mon-Fri 9:30AM – 6:00PM EST
Sat by Appointment
Sun by Appointment

Reviews:

First time trying to do a setup and easy to use when you use the music nomad videos.Aiden J
Awesomeness tools for guitar setup Aloha Mahaloalohakvjewelryhawaii
This is a great set of truss rod tools that I'd recommend to anyone just starting with setting up their own guitars. I purchased these along side the Music Nomad Tech kit and it fits right in!
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8. Martin 2-Way Truss Rod Wrench

Shop on Sweetwater
Shop on Nstuffmusic

Product Details:

Martin's 13wr0001 two way truss rod wrench can be used on both the two way adjustable rod necks or single adjustable rod.
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Specifications:

Finish Standard
Year 2020s

Reviews:

Well made, and fits snugly. Don’t use a regular Allen wrench, this is the tool you need to adjust your Martin acoustic’s truss rod
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I've never seen a Martin 2 way tool like this one for a mortise tenon trust rod, it does work I had a buzz at the top string and this tool got the buzz out. Thank you AMS for taking care of me as a customer.
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If you own a Martin, you want this in your bag. Martin’s designs require the length, and it just works perfectWill in FL

9. Taylor Truss Rod Wrench Universal

Shop on Sweetwater
Shop on Altomusic

Product Details:

Taylor truss rod wrench, universalthe taylor truss rod wrench is a handy tool for making minor adjustments to relief in your the neck of your taylor acoustic guitar. use it to compensate for a change to heavier or lighter strings, or to dial in the right feel for your playing style. features a nut driver on one end and a handy phillips screwdriver on the other. the universal version is compatible with all taylor steel string guitars.
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Specifications:

Finish Standard
Year 2020s

Reviews:

simply it's good price
I got a used Taylor T5 guitar but no truss wrench AMS shipped one out to me fast now I can set it up the right way Thanks you guysPCM 2-Fast Pat
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Wie der Titel schon sagt, passte der Schlüssel exakt, konnte meine Taylor damit genau einstellen, alles ok, der Kreuzschlüsselkopf ist aber offensichtlich nur eine Verzierung, kann an keiner Stelle der Gitarre eingesetzt werden, Preis-Leistung für einen Schlüssel unverhältnismäßig
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10. Fender Truss Rod Adjustment Wrench, 3/16" T-Style

Shop on Adorama
Shop on Ebay

Product Details:

A genuine fender truss rod wrench is exactly the right tool to use when setting up and maintaining your fender bass. 0.5cm “t-style” ball-end hex (allen) with rubber grip. used with american deluxe, american standard, and highway one (us) basses.
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Specifications:

Product Dimensions 5.5 x 4.5 x 0.75 inches
Country of Origin USA
Is Discontinued By Manufacturer No

Reviews:

I bought a used American standard 5 string pbass a few years ago and It didn't have this with it. It cannot fit a normal Allen wrenches in the slot, so I bought this one and it fits right in.ryathiesie-0
Show more
Show less
Getting into self-servicing your instruments you need lasting tools and this is just that. Great feel and quality construction.
Show more
Show less
Right now I have had a lot of time at home so I have been doing a lot of much needed repairs to my basses. This tool is great and was put straight to work right out of the packagecjmo_76
Show more
Show less

11. Guitar Truss Rod 12 Dual Adjustment Luthier

Shop on Bitterrootguitars

Product Details:

Truss rod 12 1/4" for guitar buildersdual action adjustable rod is for inserting in neck while building. dual action rod 12 1/4" longthis product may contain a chemical known to the state of california to cause cancer and/or birth defects or other reproductive harm.
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Reviews:

haven't installed yet but seems to work OK. wish it was a little smoother turning but out of a truss rod pocket it may be prone to bind quickly. I believe it will be fine. Wish it came in a headstock adjust configuation. will use it this way it just will adjust backwardsmwinque1
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it is easy to install and works well. I highly recommend it. it comes with allen key which is very helpful.splo81
Came in a well packed package. As described!lldj76

12. High Quality 9pcs Adjustment Bass Guitar Wrench Set Repair Tool Guitar Bass Neck Bridge Screw Truss Rod, Men's, Size: One Size, Other

Shop on Walmart

Product Details:

Truss rod hexagonal wrench set for most kinds of acoustic guitar, electric guitar and bass. it helps you adjusting guitar parts efficiently. 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, can be used for locking hexagonal screws on the bridge, or for the guitar neck adjustment. 1/20in for parts of japan made single roll bridge, 1/8in, 3/16in for parts of america made guitar neck adjustment. made of metal, durable and great wear-resistance. the guitar hexagonal wrench set with 9 kinds of gauge, widely used for adjusting the truss rod, guitar neck and hexagonal screws on bridge, it makes your guitar more comfortable to play. material: metal color: as shown gauge: 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 1/20 inch, 1/8 inch, 3/16 inch item weight: 54g / 1.9oz note: the guitar not included. package list: 1 x 9pcs wrench set only the above package content, other products are not included. note: light and different displays may cause the color of the item in the picture a little different from the real thing. the measurement allowed error is +/- 1-3cm. gender: male. age group: adult.
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13. Nuolux Guitar Rod Neck Truss Relief Adjustment Bass Electric Single Action Acoustic Tool Strat, Size: 17.76×0.35×0.35 In

Shop on Walmart

Product Details:

Description are you looking for a professional, yet affordable guitar lever? are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? if yes, look no further! our professional guitar lever must meet you needs. it is one of the best choices for you. features –
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Specifications:

Assembled Product Weight 0.22 lb
Assembled Product Dimensions (L x W x H) 17.76 x 0.35 x 0.35 Inches

14. Fender Bullet Truss Rod Nut

Shop on Fender
Shop on Guitarcenter

Product Details:

To help keep '70s-style electric guitar and bass necks straight and true, fender offers genuine "bullet"-style truss rod nuts.1/8" hex adjusting head. used in most '70s era and '70s reissue (us and mexico) instruments with a headstock adjusting truss rod.
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Specifications:

Finish Chrome
Year 2010s

Reviews:

If youre thinking that this truss rod nut will mate to a 1950s or 1960s Fender truss rod, well it WONT! It only works on re-issue Classic Series or similar modern Fender guitars! NOT ON TRUE VINTAGE INSTRUMENTS!!fenderdugan
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Perfect size and fit Thank youtr3roadster
Great bullet style truss rod nutdra8927_04ok6saj7n

15. Music Nomad Mn611 Truss Rod Neck Relief Measure And Adjust Kit For Gibson And Prs

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Shop on Sweetwater

Product Details:

The musicnomad truss rod neck relief measure and adjust kit for gibson and usa-made prs guitars simplifies the process of measuring and adjusting guitars neck relief, improving playability and sound. the precision truss rod gauge comes equipped with the 3 most common relief measurements for electric, acoustic, classical and bass guitars (.006?, .008? and .010?), and includes easy-to-follow instructions and a pick capo to assist. when are ready to adjust, the musicnomad 5/16" premium truss rod wrench is custom-made to fit all models of gibson and usa-made prs guitar truss rod nuts that adjust at the headstock. equipped with a handy magnetic screwdriver on one end, the wrench ensures easy removal of the truss rod screws and proper adjustment of the truss rod. the ergonomic handle and rubber protective bumper give comfort and security while working around prized instrument. the gauge can also be used on any other guitar or bass, and the 5/16" wrench is compatible with any other guitar brands that use that size.
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Specifications:

Dimensions (Overall) 1.2 inches (H) x 3.3 inches (W) x 5.5 inches (D)
Package Quantity 1

16. Music Nomad Mn612 Truss Rod Neck Relief Measure And Adjust Kit For Martin Guitars

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Shop on Guitarcenter

Product Details:

Music nomad truss rod neck relief measure and adjust kit for martin guitars standard – the musicnomad truss rod neck relief measure and adjust kit for martin guitars simplifies the process of measuring adjusting your guitar’s neck relief, improving playability sound. comes equipped with 3 most common relief measurements electric, acoustic, classical bass (. 006”, . 008” . 010”). when you are ready to adjust, 5 mm premium truss rod wrench is made custom fit all models guitar nut that adjust inside soundhole, except dss-2018, omss-2019, modern deluxe series sc-13e. ergonomic handle rubber protective bumper gives comfort security while working around prized instrument. gauge can also be used on any other or bass, compatible brands use size. includes precision gauge, pick capo wrenchprecision stainless steel includes three (. 006", . 008" . 010")gauge easy-to-follow instructions a assistworks models, sc-13epremium designed durable construction extra control accessories, tools, fretted instrument tools, guitar tools & toolkits
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17. Vencetmat 4mm & 5mm Truss Rod Wrench, Allen Wrench Tool Ball End For Martin Acoustic Guitar Truss Rod Adjustment And Deep Or Narrow Truss Adjustment.

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Shop on Ebay

Product Details:

For martin or other guitar which couldn't reach it with a regular hex wrench truss rod adjustment. two way l-shape truss rod adjustment tool. made of carbon steel, durable and highly wear-resistant. set for most kinds of acoustic guitar, electric guitar and bass. for locking hexagonal screws on the bridge, adjusting the guitar neck. what is the most important thing to attention when buying a wrench? 1. first of all, it must be a very accurate size, non-standard size will bring irreparable damage to the adjusting screw. 2. secondly, it must be strong and can be used for a long time. inferior spanners can only be used for a limited times. 3. it should have a beautiful appearance. for a tool, function is the most important, but appearance will reflect the technology quality of the manufacturing. yes, all the thing can be found in our spanner: precise. sturdy. beautiful. a wrench is not worth a penny for an expensive martin guitar. even so, you can't find the wrench in the original martin guitar's package. maybe martin company is confident in its own guitars, or they don't recommend that players adjust their guitar neck. anyway, it's very necessary to have this accessory for every martin players. when you don't like the guitar handle some day, it can help you accomplish something. in short, you won't regret own it. 4&5mm wrench covering most of the acoustic guitar's truss rod adjustment hole. martin guitars adjusting hole is deeper than the general guitars. so when inserting a wrench, it needs to be tried many times to fit properly with the screw hole. after loosening the strings, inserting a wrench, clockwise adjusting can make the strings distance lower and counterclockwise adjusting can make reverse. normally, the strings distance of 12th fret reach about less than 4mm is right. features: – this hexagonal wrench can be used to adjusted the guitar neck straight. – fitted for martin guitar and specialized to the adjusting. specification: hex size : 4mm/0.16"; 5mm/0.2" overall size : 125 x 75mm / 4.9" x 2.95" package content: 1 x 4mm wrench 1 x 5mm wrench
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Specifications:

Product Dimensions 3.54 x 3.54 x 0.2 inches
Color Name 4 & 5mm(Black)

18. Creative-Idea Electric Guitar Truss Rod Box Wrench Tool Metal 8mm Outer Diamete 8cm Length Silver

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Product Details:

The truss rod wrench is 8mm(0.31inch) socket, with 0.5cm(0.2inch) screwdriver bit on the end. made of high quality metal, no easy rust and corrosion, durable and strong. small size, easy to use and convenient for carry anywhere. long handle length allows easier access to the truss rod cavity. easily tighten or loosen the truss rod of your guitars. a perfect tool for guitar lovers. item descriptions: -the truss rod wrench is 8mm(0.31inch) socket, with 0.5cm(0.2inch) screwdriver bit on the end. -made of high quality metal, no easy rust and corrosion, durable and strong. -small size, easy to use and convenient for carry anywhere. -long handle length allows easier access to the truss rod cavity. -easily tighten or loosen the truss rod of your guitars. a perfect tool for guitar lovers. package: 1x 8mm silver guitar wrench truss item specifications: length:8cm outer diameter:8mm inner diameter:8mm color:silver type:wrench truss material:metal brand:unbranded/generic mpn:[auto fill ean]
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Product Dimensions 5.91 x 3.94 x 1.97 inches
Country of Origin China

19. Music Nomad Mn614 Guitar Truss Rod Gauge & String Action Gauge Bundle

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Product Details:

The truss rod gauge and string action gauge combo pack contains musicnomad's two most popular precision gauges. measuring your neck relief and string action height are the two most common tasks performed to improve your guitar or bass playability and sound. the first step is to use musicnomad's precision truss rod gauge that comes equipped with the three most common relief measurements (.006, .008, .010). instructions printed right on the handle make it extremely easy to dial in your neck relief. the second step is musicnomads precision string action gauge that comes with accurate measurements that are easy to read with the black finish contrasted with deep etched white markings. measurements are in inches, metric and 64ths to customize to your preference. a convenient chart on proper height by instrument type takes out the guesswork. both gauges are designed for all electric, acoustic, classical and bass guitars.
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Reviews:

I didn't need my reading glasses to read these tools.Phil
Great little tool to help me get the custom setup and save money and learn more about my guitar and get the perfect sound that I am looking forKenny
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20. Music Nomad Mn610 Truss Rod Neck Relief Measure And Adjust Kit For Taylor Guitars

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Product Details:

Music nomad truss rod neck relief measure and adjust kit for taylor guitars standard – the musicnomad truss rod neck relief measure and adjust kit for taylor guitars simplifies the process of measuring adjusting your guitar’s neck relief, improving playability sound. precision truss rod gauge comes equipped with 3 most common relief measurements electric, acoustic, classical bass (. 006”, . 008” . 010”), includes easy-to-follow instructions a pick capo to assist. when you are ready adjust, 1/4" premium wrench is custom-made fit all models guitar nuts that adjust at headstock (excluding in soundhole, including big baby nylon models pre-2012). equipped handy magnetic screwdriver on one end, ensures easy removal screws proper adjustment rod. ergonomic handle rubber protective bumper give comfort security while working around prized instrument. can also be used any other or bass, compatible brands use size. includes gauge, screwdriverprecision stainless steel three (. 006", . 008" . 010")gauge assistworks pre-2012)premium designed durable construction extra control accessories, tools, fretted instrument tools, guitar tools & toolkits
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