Anybody done this? Set for most kinds of acoustic guitar, electric guitar and bass. Here's the usual process: During set up, the rod is adjusted for proper (or preferred) neck relief, then the action height is set using the adjustable bridge, or whatever method needed to adjust the action to the preferred height. They all adjust the same, the only difference is the tool. Check out our website for new arrivals. If the fingerboard (neck) is straight a TR adjustment isn't going to accomplish much. NEW ACOUSTIC Martin BALL END TRUSS ROD ADJU Ray Mullin Music - Since 1923. The mantra righty tighty, lefty loosey applies here. Just slide the nut onto the truss rod threads and turn it clockwise. How do I adjust my truss rod allen key? You've got a real puzzler there. insufficient neck relief can cause fret buzz and/or dead notes. They do not. $ Thats what everyone in the guitar world calls it; the square tube. Easy to install in guitars, banjos and basses! Certainly for American made necks. You may hear a clicking sound when attempting to tighten a broken truss rod, others may spin freely, offering little to no resistance. # 6. That one sits right at the edge of the dovetail, so it takes a 4.5" long wrench to reach it. The side-effect is the problem. 5mm Allen Wrench; 4 Bent Leg; Please allow 3-5 business days for processing. Add to Cart. TRMT. Truss Rods Affect the Upper Frets. For a long time Martin guitars didn't have adjustable truss rods at all. I got sick of having to fool around with a regular 5 mm allen wrench and so I bought a T-handle allen wrench and got to work Customers Also Viewed. Also, it's the first adjustment i've seen at the base of the neck, accessed thru the soundhole. The nut is out of sight, so don't want to mess it up. That's what everyone in the guitar world calls it; the 'square tube'. How To Adjust The Action On A Martin Acoustic Guitar? It also featured an unusual six-on-a-side headstock design with a dark-painted fin-like curve opposite the tuners and below the logoFields originally came up with this headstock design for the ill-fated 1966 Marauder. $9.49. I asked why Martin didnt use adjustable truss Hosco Double Action Two Way Low Profile Truss Rod (460 mm) 10.90. Here's the usual process: During set up, the rod is adjusted for proper (or preferred) neck relief, then the action height is set using the adjustable bridge, or whatever method needed to adjust the action to the preferred height. Truss rod adjustment can help to get low action without fret buzz. Martin, the acoustic guitar manufacturer, uses a 5mm Hex key. Neck wrench specialized to the adjusting hole of the guitar neck relatively deep. The kit comes equipped with the 3 most common relief measurements for electric, acoustic, classical and bass guitars (.006, .008 and .010). Las mejores ofertas para Guitarra Truss Rod ajuste Largo Llave Para Guitarra Acstica Martin (5MM) X3Q5 estn en eBay Compara precios y caractersticas de productos nuevos y usados Muchos artculos con envo gratis! Link to comment. I've tweaked a lot of truss rods but i know Martin advises having an approved repair shop do this. A 4mm Allen wrench is required to make adjustments to the truss. TChristianHD28. AU $8.99 + AU $6.00 postage + AU $6.00 postage + AU $6.00 postage. Premium Truss Rod Wrench - 5mm for Martin Guitars . Whichever setup you prefer, a straight neck is a good starting point. Think of it as a countermeasure to the strings. View Product. Options. I've heard that Martin guitars have a very deep truss rod, but this is a little ridiculous, it's nowhere within reach for the allen wrench. Typically, a properly adjusted truss rod will leave a neck with a bit of forward relief. Martin Guitar Truss Rod Adjustments. Too much relief can affect intonation and string action. Posts: 4,065. 7MM/8MM/6.35MM Guitar Truss Rod Wrench Guitar Adjustment Tool I was talking about guitars with my teacher, and the subject of T-bars and truss rods came up, then he told me that his Froggy Bottom Parlour didn't h Necks Without Truss Rods? Action is adjusted with saddle and nut height. + 9.95 P&P. Brand New. 5MM Allen Truss Rod Wrench. Our Allen Wrench will help you adjust your guitars neck to achieve the action you desire. Prior to that, their necks were a little "beefier" and very stiff. the fret over the point where the body and neck meet) to the butt of the neck or finger board is unaffected by the truss rod. Truss rods often require adjusting after changing string gauges or when temperature and humidity change the amount of bow in the neck. Read how to check neck relief , find the truss rod nut , determine the correct measurement and avoid common problems . Other models, please use our 5mm truss rod wrench. So I will now try to replace it. Small martin DR and it has been great but the action keeps climbing. Saddle height range is .140" to .200". Don is correct that the truss rod is not meant to adjust the action, but adjusting the rod does, in fact affect the action indirectly. Fender guitars use a Hex key too. Scottsdale, AZ. Next, identify the problem e.g. (You can play during the adjustment time.) - The Unofficial Martin Guitar Forum by sirodger Sep 06, 2017. A truss rod is a steel rod that runs inside the neck of a guitar (under the fingerboard), and is used to stabilize the neck, counteracting the tension of the strings. Around 1985, Martin finally started using an adjustable rod, which can be reached through the soundhole for adjustment: The adjustable rod allowed Martin to make their necks a bit slimmer to meet popular requests. Fender Vintage-Style Truss Rod Adjustment Nut. 3.3 out of 5 Customer Rating. 14-Day Return Policy. Classic Martin tones with premium electronics. Ensure your guitar is in tune, this is important as it creates proper tension on your guitar's neck.Start by turning the truss rod adjustment nut by 1/8th of an inch counter-clockwise.Retune your guitar (this is important).More items Guitar Truss Rod Adjustment Long Wrench for Martin Acoustic Guitar (5MM) V1C2. I thought I could correct it myself, but through a series of missteps I ended up wrecking the truss rod. I had to tighten the truss rod quite a bit to bring some relief to the neck: it had an upward bow, causing the low E string to lay on the first 2 read more frets. Fender also offers a double action truss rod adjustment wheel on all American Elite models that makes it a snap to address neck relief. The truss rod works against the string tension on the neck. Simple compression rods may take a couple of turns to get any effect. Our ergonomic handle and rubber protective bumper gives you the comfort around your prized instrument. Tightening or loosening the adjustment nut adds or lessens pressure on the rod and neck. There are several truss rod designs, with significant differences in the way they work and the amount of adjustment required for a given amount of deflection. $22.99. $8.95. 0% interest for 36 months * i. height adjustment or even ride height control, seen in some large trucks and lu xury sedans such as certain Lincoln and most Land Ro ver automobiles. How to adjust your truss rod. Options. We will set up this guitar for you at no extra charge. The older 1-way rod is just past the #1 cross brace. To adjust the neck of your acoustic guitar first ensure the guitar is tuned to concert pitch. Turning the trussrod to the right will tighten in, which will bring your action lower. A plectrum or individual finger picks may also be used to strike the strings. The neck relief came perfectly set with .012" at the 7th fret (Capo on the 1st fret, string pressed to the highest fret). Most electric and acoustic guitars have a steel or graphite rod called a truss rod that runs down the neck of the guitar to provide reinforcement. Two way L-shape truss rod adjustment tool. Excellent tool for adjusting truss rod on Martin guitars. Truss Rod Wrench for Steel String Guitars with Truss Rod Adjustment at the End of the Headstock $9.99. Truss rods are not for adjusting action. Martin started putting adjustable rods in their guitars in the mid '80s. Usually much shorter than the Martin ones and with a 3mm or 1/8th head. The neck is a hair on the thin side of average, a satin finish so there's no "sticky" finish feel. Keep your favorite guitar in its prime by adjusting its two-way or single-point adjustable truss rod with this handy 13WR0001 truss rod wrench from Martin. Lets look at each category. Do Martin guitars have a truss rod? Worked as advertised. 8. They can fix a bent neck, sure, but that's not their primary purpose. Square tubing is lighter than using a solid square bar and still manages to remain pretty strong. Don is correct that the truss rod is not meant to adjust the action, but adjusting the rod does, in fact affect the action indirectly. in New York. We will set up this guitar for you at no extra charge. I was talking about guitars with my teacher, and the subject of T-bars and truss rods came up, then he told me that his Froggy Bottom Parlour didn't h Necks Without Truss Rods? Posted on May 6, 2018 by Martin. - The Unofficial Martin Guitar Forum Removing and Repairing a Broken Harmony Truss Rod; Rethreading a Broken Truss Rod; Structural. Verified purchase: Yes | Condition: New. Several sites suggest all Martins are 5mm hex socket head ie Allen key. It features a huge range of tools including leveling tools, string organizers, and guitar files, allowing you to tackle just about any guitar maintenance issue including truss rod adjustment! To check the truss rod's adjustment you need to hold down the strings to the 1st and 12th fret (e.g. BUT: The action doesnt reduce consistently along the neck. When I got it, the action was too high. Used by Martin, Epiphone, Ibanez, Squier, ESP and Godin. However, if your measurements showed that you still don't have the relief that you want, you still have Fender guitars use a Hex key too. 26 votes, 21 comments. with two capos) with the guitar fully strung and in tune and measure the gap at the 7th fret. It was made of hard-rock maple with a "bullet" truss rod adjustment and Micro-Tilt neck adjustment. $24.99. These strong, 2-way adjustable rods correct both upbow and backbow. The Side-Effect. $9.99. Martins first steel rod came about in the 30s (called the T-Bar truss rod). New New New. Carbon Fiber Rectangular Truss Rod .118"(3mm) x .315"(8mm) look at the bass from the bridge to the headstock. Our Allen Wrench will help you adjust your guitars neck to achieve the action you desire. Oh yes, I do have an opinion. Martin Truss Rod Allen wrench. MusicNomad's 5mm Truss Rod Wrench is the perfect tool for adjusting Truss Rods that are located deeper in the soundhole. In most cases, this is a biggy. Just to illustrate the different Ibanez truss rods and tools. $6.00 no. I want to tweak the truss rod on my HD 40 & was wondering what size is the nut. Action is affected by the truss rod; but the truss rod should not be used to adjust action. We are New England's oldest Martin dealer,we have a large inventory of Custom shop,Standard,Vintage and Golden Era guitars in stock. Tune the guitar up to pitch and check the relief in the neck. Adjust the truss rod by turning the truss rod bolt inside the hole on the headstock by employment of the supplied 4 mm T Wrench a quarter of a turn at a time until the desired relief is obtained. Remember to tune the guitar in between turns as the tuning may be affected by an altered neck angle. Neck Relief Kit for Gibson and USA-built PRS Guitars with Precision Truss Rod Gauge, Pick Capo, and 5/16" Truss Rod Wrench. The truss rod allows you to determine how much or how little of the strings' pull you want on the neck, that is, it lets you set the relief of the neck so that the strings don't rattle against all the frets. Some forward bow is needed for sure. The StewMac hotrod is much more sensitive, 1/4 turn is a huge adjustment. The guitar has some checking and needs a neck adjustment. As a general rule,tightening the nut moves the neck away from the string pull and removes upbow; loosening the nut allows the neck to relax into an upbow again (especially when helped by the strings pull). You don't want to turn your truss rod more than a 1/4 turn at a time. Thread starter Nate D; Start date Oct 22, 2017; Nate D Most Honored Senior Member. Similarly, when tightened, the truss rod straightens the neck by resisting string tension. The nut is out of sight, so don't want to mess it up. Quote. Guitar Truss Rod Adjustment Long Wrench for Martin Acoustic Guitar (5MM) S1K6 | eBay Martin switched from T-bar to square steel tube truss rods in 1967. New Martin Acoustic guitar truss rod wrench ball end. 5 out of 5 stars. Please keep stocking them. there is no truss rod and the saddle is as low it will go without a neck reset. Adjust the truss rod another 1/8 turn or less if necessary. Truss rod was stiff so I had to use a qtip to oil wrench socket. These will be either 4mm [JS1] or 5mm [JS1000]. - Thumbwheel truss rod adjustment - EVH neck plate - Bar string retainer - Hardware: Chrome - Finish: Hand-rubbed oil finish Dimensions and Weight in Packaging Black and Yellow Shipping Weight: 10.75 lbs Shipping Dimensions: 42 x 15 x 5 in Manufacturer Part Number (MPN): 5107902528 First loosen the strings off, so that way your not combating the string tension and the wood inherent tension whilst doing the adjustment. Martin Guitar Truss Rod Adjustments. at the 5th fret. Agreed. Tighten the nut until its just a little snug. In Stock. Myth #2. Its not likely. Adjusting the truss rod The Truss Rod access point on a Fender Stratocaster. Please allow 3-5 business days for processing. SC-13E. Desirable neck relief is -.003" to -.005". Martin Groove Tech 5mm Truss Rod Adjustment Wrench w/ Handle. Scott O. These are factory Martin truss rod wrenches the real deal! First, you need to locate the exposed end of the truss rod. A gap slightly thinner than a business card is about right. Martin DX1AE truss rod. Here is another rarity an 1840s Martin & Coupa guitar, built in Nazareth PA for John Coupa at 385 Broadway (Upstairs!) 1. This listing is for a beautiful Tao Guitars T-Bucket, hand built by luthier duo John and Serge of Tao Guitars based in Brussels-Belgium. For locking hexagonal screws on the bridge, adjusting the guitar neck. Parker Fly truss rod adjustment wrench for guitars made in USA from 1993 to 2004. 14-Day Return Policy. So it's not a 1:1 translation of turning it and the turning changing, which makes tuning the guitar a bit cumbersome. Martin switched from T-bar to square steel tube truss rods in 1967. Re: Martin D 28 trusrod adjustment. It may be a hex key, nut driver, screwdriver, box wrench, or miniature screwdriver. Neck Relief Kit for Martin Guitars with Precision Truss Rod Gauge, Pick Capo, and 5mm Ball-end Truss Rod Wrench $22.99. First thing one should do when contemplating a TR adjustment is look down the neck when the guitar is in tune, and see if it's got a bow in it (forward or reverse). For martin or other guitar which couldn't reach it with a regular hex wrench truss rod adjustment. This time he showed how to adjust truss rod on a Martin acoustic guitar. Anybody done this? The steel rod inserted inside the neck stiffens the neck and helps to keep the neck from bowing forward with relief. These are factory Martin truss rod wrenches the real deal! When you are ready to adjust, the MusicNomad 5 mm premium truss rod wrench is made custom to fit all models of Martin guitar truss rod nut that you adjust inside the soundhole, except DSS-2018, OMSS-2019, Modern Deluxe Series and SC-13E. Martin Vintage 1971 D12-20 12-String Acoustic Guitar W / Case This guitar is being sold as is! Controlled upbow is known as relief. When you are ready to adjust, MusicNomad's 5mm Premium Truss Rod Wrench is made custom to fit all models of MARTIN Guitars truss rod nut that you adjust inside the soundhole except DSS-2018, OMSS-2019, Modern Deluxe Series and SC-13E. To add to the other answers, the truss rod really isn't for adjusting the action. We are New England's oldest Martin dealer,we have a large inventory of Custom shop,Standard,Vintage and Golden Era guitars in stock. AU $8.99 + AU $6.00 postage + AU $6.00 postage + AU $6.00 postage. Straightening a bowed neck with a truss rod can have the side-effect of reducing action. Filling Holes in 28th March 2013. Saddle Protrusion Measured in center of the saddle with a caliper. Hot Rod Low-profile 2-Way Truss Rod. Great for thinner necks that need a shallow truss rod depth. When the market demanded less bulky low profile and low oval necks, the adjustable truss rod was needed because they bowed a little easier and the newer design helped to correct that. 5% OFF WITH 20220502235689A (Max 100 off) See all eligible As I understand it they made his design standard issue some time in the 1970s. The MusicNomad MN612 Truss Rod Neck Relief Measure and Adjust Kit for Martin Guitars includes everything you need to measure and adjust the neck relief on your Martin guitar. This is a guitar that's affordably priced for the bedroom player, and at the same time is gig ready out of the box. One side is 5-mm the other is 4-mm fits most Martin guitars. 2-Way Dual Action Truss Rod for guitar and basses. On necks that have tight truss rod adjustments, you need to go real easy. Removing most truss rods requires removal of the fingerboard, which in turn, requires a complete refret and finish work. Apr 2, 2016 9,399 Philly, PA. Oct 22, 2017 #1 Im embarrassed to say that I pretty much dont adjust my own truss rods, but have recently gotten over that fear. A concave (dipping) neck bow can be corrected by tightening the truss rod, thus resisting string tension. Several sites suggest all Martins are 5mm hex socket head ie Allen key. AU $13.23 To adjust the truss rod, you'll need to turn the nut a quarter turn at a time, enabling the neck to adjust after each turn. Still had to apply some muscle to break it. Here is Edwin's another guitar tip. The truss rod is accessed at the sound hole like a Martin, not my personal preference, but really not difficult. Improve this article for others! I therefore got a 5mm truss rod adjuster to adjust my truss rod by turning anti-clockwise, in slow quarter steps (waiting at least a day after each quarter step) to almost turn the truss rod by 270 degrees. Smoother adjustment than 2 way rod. 1 Dan Erlewine, Guitar 201: Adjusting the Truss Rod, May 3, 2017, Available from MusicPlayers.com; 2 Marguerite Pastella, Types of Truss Rods, May 3, 2011, Available from Fret Not Guitar Repair; 3 Sweetwater Writer, How We OPEN, inspect, and test ALL guitars, pedals, amplifiers, etc. Neck Relief Kit for Martin Guitars with Precision Truss Rod Gauge, Pick Capo, and 5mm Ball-end Truss Rod Wrench. Your truss rods nut type determines the tool youll need. Found on older guitars like archtops, classical guitar, and some flattop guitars, non-adjustable rods also known as K-Bars or Steel Re-enforced Necks are typically composed of wood, graphite, or metal, and cannot be altered or manipulated. Truss rod single action, 17" x 3/8" (overall length 17 3/4") $20.91. MusicNomad Truss Rod Neck Relief Measure and Adjust Kit for Gibson and PRS Guitars. For $10.99 its an absolute steal but bear in The counter-tension it provides can typically be adjusted, which can have a large effect on the neck relief, intonation, and overall string action. $12.95. If theres a hole or cover plate next to the nut at the headstock end, thats where youll be making your adjustments. Check out our website for new arrivals. Martin switched to the 2-way adjustable truss rod in 2006. A couple of months ago I bought a Martin DX1AE Acoustic/Electric guitar from the local shop. It's a length of (9.5mm) square tubing (or 'box section'. We OPEN, inspect, and test ALL guitars, pedals, amplifiers, etc. 84SC, I'm with you on loosening the strings before adjusting the TR. Today, almost all guitars are fitted with adjustable truss rods that can be adjusted using an allen wrench or screw driver in either the nut or the heel of your neck. The side-effect is why this poor practice has perpetrated. Brand New. Our durable steel construction with nickel finish is designed to work over and over again. I was lucky to have bought the guitar and it didn't need a truss rod adjustment and the action was fairly good. When the truss rod is loosened, the neck bends slightly in response to the tension of the strings. One side is 5-mm the other is 4-mm fits most Martin guitars. rod. Overview - Martin's 13WR0001 two way truss rod wrench can be used on both the two way adjustable rod necks or single adjustable rod. Guitar necks are wooden, and this is a material that twists and warps between the varying temperature and humidity of the four seasons. Read or Die, a Japanese anime and manga Read or Die, an original video animation based on the manga; Read or Dream, a manga set in the Read or Die universe; For the vast majority of guitars on the market today, the region from the body fret (i.e. Q: I have a second-hand 2017 Martin D-16E. Just like the original Martin truss rods. Ball end lines up tool easy. To this point in time, Fender necks had been a single piece of Maple with a rear Walnut Skunk Stripe covering the truss rod channel. Adjust the guitar neck straight,suitable for Martin guitar, regardless of the types, the piano body shall be general. You can use your strings as a "straight edge" by pushing them down to both the 1st and 14th frets simultaneously. FOOTNOTES. Its like leaving the transmission out of a car and shipping it. 7mm [RG/JEM] and 8mm [RBM/AR] typical nut on threaded shaft, but they also use an Allen wrench adjusted Allen head shaft that threads into a fixed nut on the other end. $11.89 + $1.89 shipping + $1.89 shipping + $1.89 shipping. Truss rod, a steel part inside a guitar neck used for its tension adjustment; Arts and entertainment. Think about it and it makes perfect sense. New Martin Acoustic guitar truss rod wrench ball end. Turn your truss rod adjuster nut clockwise and you will add more pressure onto the neck pulling it into back bow. Designed for adjusting Martin Guitars, MusicNomad's 5mm Truss Rod Wrench's long reach combined with an ergonomic handle for extra reach, comfort and control is the perfect tool to safely get the job done. Cost of strings is not included. The results of turning the truss rod should be fairly immediate, there's no particular need to wait days to see the results, and unless you're cranking on it like a 500lb gorilla, you're very unlikely to damage anything - if you tighten it too much and the neck is too straight (or even goes into a back-bow), loosen it off again a bit $6.99. Remove old strings, clean fretboard and polish tops of frets, oil fretboard, tighten loose tuners and hardware, oil fretboard, stretch strings, tune to pitch, full truss rod adjustment, adjust any equipped tremolo or tailpiece and polish guitar. This is the easy part. Depending on your playing style, .010" to .012" should be plenty of relief. 18TOOL12. Not for the feint hearted, Tune your guitar to pitch Starting point for neck relief too severe you want to reduce the neck relief and reduce the amount of bow The T-Bucket is Tao's nod to Leo Fender's Telecaster, but with some more modern features such as a contoured body, Our instruments are tuned, cleaned, and cared for daily in a humidity and temperature controlled room. Truss Rod Adjustment. Turn it anti-clockwise and you will loosen the truss rod allowing the strings to pull the neck into a forward bow. Guitar Truss Rod Adjustment Long Wrench for Martin Acoustic Guitar (5MM) V1C2. A truss rod keeps the neck straight by countering the pull of the strings and natural tendencies in the wood. Thread starter Nate D; Start date Oct 22, 2017; Nate D Most Honored Senior Member. This truss rod wrench can be used on the following models: DSS and OMSS Models. 84superchamp. Hex key. Apr 2, 2016 9,399 Philly, PA. Oct 22, 2017 #1 Im embarrassed to say that I pretty much dont adjust my own truss rods, but have recently gotten over that fear. Heres the rub between the two. This changed when Don Teeter of Oklahoma City became the first person authorized to install an adjustable truss rod in a Martin guitar during the 1960s. Only if someone did some major surgery. Then the gap between the string and the 6th fret can be observed. High action will cause the 12th fret note to be more sharp because you have to bend the string more. So as I'm taking the opprotunity to adjust the truss rod after removing the old strings, I stick the allen wrench into the drilled hole and it bottoms out. What makes a truss rod adjustment necessary? Tightening the truss rod pulls it back in the other direction to straighten it back out. This is what is referred to as "adding relief" turning the trussrod to the left will remove relief, straighten the neck, and make the action higher. Our instruments are tuned, cleaned, and cared for daily in a humidity and temperature controlled room. The guitar is a fretted musical instrument that typically has six strings.It is usually held flat against the player's body and played by strumming or plucking the strings with the dominant hand, while simultaneously pressing selected strings against frets with the fingers of the opposite hand. Compare. Measurement is taken in the player position. Click to be added to our backorder notification list. Answer (1 of 16): I am assuming that you know why you want to adjust your truss rod ? $18.99 32% price drop. Having the right tool to perform your key gear adjustments is essential. Turn clockwise to tighten and straighten the neck. With a properly functioning truss rod, you probably wont need more than 1/8-turn in either direction to get what youre after. Photo 2. Modern Deluxe Series. Some manufacturers, including Larrive and Collings, use a long, bent hex key to adjust the truss rod. Leave a comment about your experience adjusting your truss rod, and include your own tips. This kit contains a Precision Truss Rod Gauge, a Pick Capo, and a 5mm ball-end Truss Rod Wrench. I want to tweak the truss rod on my HD 40 & was wondering what size is the nut. This 52 year old Martin is well played and accordingly has a number of minor flaws and wear (occasional small dings, scratches, repaired cracks, etc ). In Stock Compare. Installing the new truss rod nut. Temporarily Out of Stock. When you are ready to adjust, the MusicNomad 5 mm premium truss rod wrench is made custom to fit all models of Martin guitar truss rod nut that you adjust inside the soundhole, except DSS-2018, OMSS-2019, Modern Deluxe Series and SC-13E. The guitarists here at Sweetwater have found that this kit is a breeze to use. Item # 18TOOL12 Need to change the action of your favorite Martin? December 4, 2021 Peter. Free 7MM/8MM/6.35MM Guitar Truss Rod Wrench Guitar Adjustment Tool with ScrewdrivS9C3. I did file down the saddle nut about .5mm to lower it a bit more, but that's really it. NEW ACOUSTIC Martin BALL END TRUSS ROD ADJU Ray Mullin Music - Since 1923. The capo should be placed at fret 1, and the low E should be pressed down at the body joint (fret 15 for most guitars). On electric guitars, none of these means of string-height adjustment are beyond the capabilities of a dedicated do-it-yourselfer who possesses just a couple of tools. Most guitars have incorporated truss rods since at least the middle of the 20th century. Truss Rod Wrench by MusicNomad helps you find the right size tool for over 75 brands for your truss rod adjustment on electric, acoustic and bass guitars. Gibson Electric Guitar Truss Rod Adjustment. 1970 Martin D-18 guitar (a player grade instrument). MusicNomad Premium Truss Rod Wrench - 5mm for MARTIN Guitars. Our extensive database search tool helps you find the proper tool by popular brands such as Fender, Taylor, PRS, Gibson, Martin and many others. Now the adjustable rod is a standard feature of Martin (and most other) steel string guitars. The one I ordered had a totally slack truss rod: perhaps an oversight at the factory (or somet new thing done intentionally for shipping?). Its a length of (9.5mm) square tubing (or box section. The non-adjustable rod can only help the neck by stiffing it to a certain point. Sep 23, 2010. Brand New. There are two cracks in the face finish and the bridge has the slightest lift. 0% interest for 36 months * i. New New New. MusicNomad Truss Rod Neck Relief Measure and Adjust Kit for Martin Guitars. NEW ACOUSTIC Martin BALL END TRUSS ROD ADJUSTMENT WRENCH GUITAR TOOL- MADE USA. The more you tightened the strings, the more they would pull on the neck and increase curvature. New New New. Martin, the acoustic guitar manufacturer, uses a 5mm Hex key. $9.99. A little truss rod adjustment goes a long way, as you can see by measuring your string height before and after with a string action gauge. Made of carbon steel, durable and highly wear-resistant. Fully Wrapped 2-Way Dual Action Truss Rod. Answer (1 of 2): In the late 70s at a Guild of American Luthers annual convention (today semi-annual), I was speaking with Mike Longworth, the longtime spokesman and noted historian for C. F. Martin Guitars.