Close

Gauged Nut Slotting Files

5.0
  • 266 Reviews
  • Write a review
Mix + Save
  • Buy any 6, get 10% OFF

    Save $8.64 or more

0.010" width

Item # 0821
In stock, ready to ship!

$14.42

6 or more $12.98
+

0.013" width

Item # 0823
In stock, ready to ship!

$14.42

6 or more $12.98
+

0.016" width

Item # 0827
In stock, ready to ship!

$14.42

6 or more $12.98
+

0.020" width

Item # 0828
In stock, ready to ship!

$14.42

6 or more $12.98
+

0.024" width

Item # 0829
In stock, ready to ship!

$14.42

6 or more $12.98
+

0.028" width

Item # 0830
In stock, ready to ship!

$14.42

6 or more $12.98
+

0.032" width

Item # 0831
In stock, ready to ship!

$14.42

6 or more $12.98
+

0.035" width

Item # 0832
In stock, ready to ship!

$14.42

6 or more $12.98
+

0.042" width

Item # 0833
In stock, ready to ship!

$14.42

6 or more $12.98
+

0.046" width

Item # 5313
In stock, ready to ship!

$14.42

6 or more $12.98
+

0.050" width

Item # 0834
In stock, ready to ship!

$14.42

6 or more $12.98
+

0.056" width

Item # 0835
In stock, ready to ship!

$14.42

6 or more $12.98
+

0.065" width

Item # 4551
In stock, ready to ship!

$16.27

6 or more $14.64
+

0.075" width

Item # 0836
In stock, ready to ship!

$16.27

6 or more $14.64
+

0.085" width

Item # 5314
In stock, ready to ship!

$16.27

6 or more $14.64
+

0.095" width

Item # 0837
In stock, ready to ship!

$16.27

6 or more $14.64
+

0.105" width

Item # 4554
In stock, ready to ship!

$16.27

6 or more $14.64
+

0.115" width

Item # 0838
In stock, ready to ship!

$16.27

6 or more $14.64
+

0.125" width

Item # 0839
In stock, ready to ship!

$16.27

6 or more $14.64
+

Complete Set of 19

Item # 0928
In stock, ready to ship!

List Price $286.93
Your Price $258.24

+
 
Total:
Qty:
Scroll to Top

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.

Customer Reviews

  • Excellent
  • Good
  • Average
  • Fair
  • Poor
Write a review
5.0
  • 4.77 average rating from 266 reviews
Sort by
5.0

Great files really good quality!

By

Verified Buyer


Love these files and the fast shipping!

5.0

Guaged nut slotting files

By

Verified Buyer


I love these files. They make accurate slot sizing a breeze. I work on violins, violas, and cellos, and no two strings are the same size. After measuring the string diameter, I can make custom-sized slots by angling the file from side to side as I cut. I've also successfully used two files together to make a more accurate slot. I have 9 files now, will probably buy more.

The only down-side is with the very thin files. They are difficult to use on very hard woods like ebony, they tend to bind and fish-tale. But with a little practice, I've been able to use them successfully.

Marisa Rubino, luthier
Johnny Thompson Music
Monterey Park, CA

5.0

Perfect cut every time

By

Verified Buyer


Perfect cut every time

5.0

Added to my other files

By

Verified Buyer


I been using these nut files for a very long time, I haven't worn out the others just adding different gauges

5.0

Nut file

By

Verified Buyer


Works beautifully

5.0

Love them

By

Verified Buyer


Glad I bought them.

5.0

If your doing a lot of nuts in the shop you need a set

By

Verified Buyer


I’m very happy with my set. Thanks StewMac.

5.0

No Going Back

By

Verified Buyer


I'd bought a set of these a couple years ago and thought of them as an experiment; something different from the type of slotting files I'd been using for years and years. There's no going back now ... I've just bought for inevitable replacement and expanded the set.

5.0

Excellent!

By

Verified Buyer


As with all of my other Stew/Mac purchases, this one is top notch and a must have for any serious repairman, technician, or Luthier.

We use this and many other Stew/Mac tools during manufacturing and setups on all of our Sterling by Music Man and B.C. Rich guitars and basses.

Brian Martin
Vice President,
Praxis Musical Instruments
Home of Sterling by Music Man and B.C. Rich

5.0

Great file

By

Verified Buyer


I bought this file hoping to cure behind-the-nut ringing of the g string due to a bad slot on a strat. The file worked great but the string rings worse now. Maybe an added tree would do it.

Showing 10 of 266 Read more reviews >>


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