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Gauged Nut Slotting Files

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0.010" width

Item # 0821
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Complete Set of 19

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List Price $286.93
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Gauged Nut Slotting Files

About This Item

Our tempered edge-cut nut files produce round-bottom slots for nuts and saddles. Ensure your strings seat properly in the nut without buzzing!

Each chrome-alloy steel file has twin 4" cutting edges. Among our most popular tools, these professional files help you get the job done quickly and correctly.

What files do I need?
Choose nut slotting files that are the same size or no more than a few thousandths larger than your individual string gauges. A smaller file can also be rocked side to side to widen a slot to the desired size. For example, you can cut a .043" slot with a .042" file by moving it around a bit.

Save 10% by purchasing the complete set
Always have the right gauge for cutting and shaping string slots on any instrument. Complete set of nineteen files includes every size we offer.

Tip: Slotting Tune-o-matic style saddles
Nut slotting files work great for metal saddles. Choose your file size as you would when slotting a nut: use the same gauge as the string, or a few thousandths larger. After filing to the desired depth, we suggest polishing the slot with Mitchell's Abrasive Cord to remove file marks and burrs.


Video

Trade Secrets!

Trade Secrets!

Are you supposed to slot Tune-o-matic bridge saddles?

Customers often ask how and why they should put slots in the saddles of their new Tune-o-matic bridge. Erick Coleman provides the answers in this issue of Trade Secrets.

Instructions

Product Instructions

Making a Nut, Step-by-Step

Dan Erlewine, of Stewart-MacDonald's R&D Team, walks you through making and installing a new nut.

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5.0
  • 4.77 average rating from 259 reviews
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Displaying 14 of 26
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5.0

Great tool

By

Verified Buyer


Has helped us in the workshop with a lot of fine tuning jobs.Thanks Stewart Mac

4.0

Great but be careful

By

Verified Buyer


These are nice quality files and do the job great. I'm a newbie so learn from my mistake: make sure you cut a wider slot than your string. As I was filing away and checking string height, I didn't realize the string wasn't seating all the way into the new slot. I ended up filing three of my slots way too deep. I found out days later when the strings finally worked their way all the way down. I've learned to rock the file side-to-side more than I anticipated.

5.0

Pro Results

By

Verified Buyer


Bottom line is if you want pro results you have to use pro tools, no way around it, as the saying goes, you get what you pay for.

5.0

Simple is good.

By

Verified Buyer


I've tried many different tools and methods for nut slotting over the last thirteen years and have yet to find a more practical and effective means of getting the job done. I have yet to wear one out, even with a few MOP nuts in the mix. You might want to add a "backbone" to the .010" file however. I cut a couple strips of Ipe wood (very stiff) 1/16" X 3/16" X 5-7/8" and ca glued them down the center of each side of the file while holding everything perfectly flat. The wood gives it a nice grip while keeping it straight and rigid. A little bevel on the business end and it still slips into the protective sleeve it came in. I use a little white paraffin to lube the files when they get "bindy" in bone or MOP. Great little (simple) tools.

4.0

Tools that perform better than expected.

By

Verified Buyer


I recently purchased these nut slotting files and found them to be the perfect solution to a deceptively simple task. Especially for the larger A and E strings

2.0

Cuts SLOW!

By

Verified Buyer


I've only used them on a pre-slotted, plastic nut so far, and it took forever just to deepen the existing cuts a little bit. Like sawing tree branches with a butter knife.

5.0

great tool

By

Verified Buyer


works exactly as advertised. Watch out - it's easy to cut too much! The narrower they are, the faster they cut.

5.0

Excellent files

By

Verified Buyer


Excellent file for making exact sized slots in nuts.

4.0

Working perfectly, should be better protected

By

Verified Buyer


For the job, these files work perfectly. The only drawback is that the paint on the handle end gets smudged in minutes of use, so in order not to lose the gauge markings I had to wrap all my files' ends in clear scotch tape for protection. An extra coat of clear lacquer on the handles would be welcome.

5.0

Nut Files

By

Verified Buyer


Very easy to use and saved me a ton of time. Last nut I cut with swiss files. Turned out good, but since I intend to build several more instruments, seemed like an easy purchase to justify. So much easier to fine tune the depths.

Displaying 14 of 26
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StewMac PDF Catalog, page 4 See Gauged Nut Slotting Files
on page 4 of our StewMac Digital Catalog