Please see our COVID-19 Statement
StewMac Fretbar Understring Leveler

StewMac Fretbar Understring Leveler

StewMac Fretbar Understring Leveler 4.5" Length

4.5" Length

Item # 4641
In stock, ready to ship!

$19.95

+
StewMac Fretbar Understring Leveler 9" Length

9" Length

Item # 4642
In stock, ready to ship!

$29.95

+
StewMac Fretbar Understring Leveler 18" Length

18" Length

Item # 4643
In stock, ready to ship!

$54.95

+
Replacement String Jack StewMac String Jack

StewMac String Jack

Item # 4768
In stock, ready to ship!

$0.99

+
StewMac Fretbar Understring Leveler, 4.5" Length with Stikit Set

4.5" Length with Stikit Set

Item # 2344
In stock, ready to ship!

$70.79

+
StewMac Fretbar Understring Leveler, 9" Length with Stikit Set

9" Length with Stikit Set

Item # 2345
In stock, ready to ship!

$80.79

+
StewMac Fretbar Understring Leveler, 18" Length with Stikit Set

18" Length with Stikit Set

Item # 2346
In stock, ready to ship!

$105.79

+
 
Total:
Qty:
Scroll to Top

StewMac Fretbar Understring Leveler

About This Item

How do you level the frets at the right tension?
One of the most challenging things to get right with any setup or fret work is knowing the frets will be level under actual string tension and playing conditions. Now we've made it easy.

Our solution for this was the invention of the Erlewine Neck Jig—the industry standard when it comes to simulating string tension to get the most accurate fretwork possible. But let's face it, sometimes jobs are too small to strap them into the Neck Jig, or you need to work outside your shop where the neck jig isn't practical. We knew there had to be a better answer.

Now, you can level your frets...with the strings ON!
Matt Brewster from 30th Street Guitars brought us this amazingly simple (but effective) idea for getting perfect fret dresses with the strings still on the guitar. This great idea became the StewMac Fretbar® Understring Leveler, or simply the Fretbar. This revolutionary new tool lets you level your frets under full tension without removing the strings. It's designed to work with our 1" wide 3M Stikit Gold Abrasives for ultra-fast set up and leveling.

Fret work without guesswork
With the Fretbar you'll level the frets with the exact tension the neck has when played. This is because the Fretbar fits UNDER and BETWEEN the strings, with the guitar tuned to pitch. The precision-ground surface is just 5/64" thick, allowing you to glide under the strings when leveling.

Because the neck is under tension, you'll clearly see every hump, twist, high or low spot. With the Fretbar you can level the frets without worry or any "surprises" that pop up after the job.

There is a Fretbar for every leveling job:

4.5" length ideal for spot leveling problematic frets all over the neck. It's also perfect for creating fallaway on acoustic guitars.

9" length is designed for smaller necks like ukuleles and mandolins. It also works for leveling full scale necks and spot leveling.

18" length makes it easy to level an entire neck. You'll quickly and evenly level most of the frets at the same time, without the added danger of running into the nut, saddle, or hardware.

We also include the String Jack to use with the Fretbar. Put the jack in front of the nut to raise the strings without changing the tension on the neck. Replacement String Jacks are also available.

Works with the strings off too
This is also a great all around fret leveling tool. Used with the strings on or off, the precision-ground surface works quickly and accurately to get frets level. If you're just getting started or have a ton of experience, the Fretbar is a great option for any fret work.

    Built for a lifetime of use
  • Made of durable extruded 6061 aluminum
  • Guaranteed accuracy of ±0.0015" per foot
  • Designed to work with our custom 1" wide 3M Stikit Gold Abrasives
  • Works with the strings on or off

Your fastest and most profitable leveling ever
Because you don't need to remove or replace the strings, you'll save time on every leveling job. And with our 1" wide 3M Stikit Gold Abrasives—already cut to the perfect width—you're ready to level in an instant. No more wasted strings or sandpaper!

Save with the set: Fretbar and Stikit Set
Stikit Abrasives cut like a file, last longer than regular sandpaper, and are sized to stick right to the 1" width of each Fretbar. These are the same professional sandpapers we use to quickly and cleanly level frets, and to remove the scratches before you recrown and polish.

Each set includes one Fretbar and four 15-yard rolls of Stikit, one of each grit: 320, 400, 600 and 800-grits. More grits are available separately.

Each Fretbar is 3/4" (19mm) wide x 1-15/32" (37mm) tall extruded aluminum, and available in three lengths: 4.5" (114mm), 9" (228mm), and 18" (457mm).

Works on stainless frets, too!
All of our tools are suitable for use on stainless-steel fretwire*. Modern stainless-steel fretwire is known to be harder than the traditional nickel-silver blends, but our own shop experience indicates the wire does not cause premature wear of files or sandpapers.
*Excludes our original Fret Tang Nippers. We recommend our Deluxe Fret Tang Nippers for stainless-steel fretwire.



CALIFORNIA PROPOSITION 65 WARNING
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.


Video

Customer Reviews

  • Excellent
  • Good
  • Average
  • Fair
  • Poor
Write a review
5.0
  • 4.93 average rating from 54 reviews
Sort by
5.0

StewMac Understring Leveling Beam

By

Verified Buyer


Understing leveling makes a lot of sense, All the string are not needed in order to keep the neck under tension and straight. As for the leveling Beam itself very well made and dead flat. The price of this leveler is comparable to other well made Beams.

5.0

Top quality

By

Verified Buyer


Not had chance to use the Fretbar yet, but the quality is vey good, being of solid construction and finished to the highest of standards.

5.0

New ball game !

By

Verified Buyer


Troublesome fret buzz GONE !

5.0

Seriously Heavy Duty Tool

By

Verified Buyer


This tool is machined from a solid block of aluminum. It was dead flat and nicely finished.

5.0

Ingenious little helpers...

By

Verified Buyer


...whether strings are on or off - using all three sizes here and won't go back to old tools now.

5.0

It's pretty good.

By

Verified Buyer


I got the small one. I use it (with strings off) to create fall off. It is super easy to use and does the job.

5.0

great

By

Verified Buyer


as allways with StewMac you get the best

4.0

Won't preserve your radius, but does level quickly under tension as advertised

By

Verified Buyer


The understring leveler does everything well that it is meant to do. My only problem with the tool is that, while I came close, I couldn't figure out how to perfectly preserve the original 9.5" radius of my guitar.

Based on what I experienced, this tool is great for getting the majority of the fret material off while the neck is under tension. Afterwards, you can fine tune the job by using a radius sanding block matches your fretboard.

5.0

Great tool for leveling under tension

By


I can't say enough good things about this tool. Finally a tool you can use under tension for some of those pesky necks that will sit almost flat when you have tension, but without the strings they decide to not sit flat- and the truss rod doesn't cooperate. Tool long in the waiting.

5.0

Great Product well built for the price

By

Verified Buyer


Before I bought this I wounderd if it would tip up or down and damage the fretbord going over the frets, No it will not , as long as you hold it near the center, same goes for any sanding beam of a certain lenght. I bought the 9" tipping is not a problem at all and the sand paper stays firmly in place. Recommended product well built.

Showing 10 of 54 Read more reviews >>