Gauged Nut Slotting Files

  • 176 Reviews
  • Write a review

Our tempered edge-cut nut files produce round-bottom slots, to ensure that the strings seat properly in the nut without buzzing.

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0.010" width

Item # 0821
In stock, ready to ship!

$13.73

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0.013" width

Item # 0823
In stock, ready to ship!

$13.73

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0.016" width

Item # 0827
In stock, ready to ship!

$13.73

+

0.020" width

Item # 0828
In stock, ready to ship!

$13.73

+

0.024" width

Item # 0829
In stock, ready to ship!

$13.73

+

0.028" width

Item # 0830
In stock, ready to ship!

$13.73

+

0.032" width

Item # 0831
In stock, ready to ship!

$13.73

+

0.035" width

Item # 0832
In stock, ready to ship!

$13.73

+

0.042" width

Item # 0833
In stock, ready to ship!

$13.73

+

0.046" width

Item # 5313
In stock, ready to ship!

$13.73

+

0.050" width

Item # 0834
In stock, ready to ship!

$13.73

+

0.056" width

Item # 0835
In stock, ready to ship!

$13.73

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Currency:
Total: $0.00
Quantity: 20

Product Video

Gauged Nut Slotting Files

It just makes sense to cut the string slots to match the string gauges! With this set of gauged files, your work is fast and accurate too.


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Product Details

Our tempered edge-cut nut files produce round-bottom slots, to ensure that the 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 that a few thousands 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.

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.


Trade Secrets! Newsletter

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.

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.

Ratings & Reviews

Gauged Nut Slotting Files

  • EXCELLENT PRODUCT
  • GOOD PRODUCT
  • AVERAGE PRODUCT
  • FAIR PRODUCT
  • POOR PRODUCT
  • Based on 176 Reviews
Displaying 4 of 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Write a review

The .010 file

By Matt Robbins from S. Mars, The Milky Way
(Customer's Reviews) Tuesday, August 20, 2013


3 stars due to the total lack of rigidity. Can't see this being very useful for nuts without adding some back bone (as others have mentioned) to keep it rigid and straight.

Thin files aren't strong enough.

By T Copley from Australia
(Customer's Reviews) Tuesday, August 13, 2013


I have a set of the other Double Edged nut files, which are better in my opinion. But as they don't have .010 or .046 gauges I ordered these gauged files. No complaints with the .046. The .010 had a curve in it. Stewmac were quick to send me a replacement and well packaged, but it to was warped. I put it down to the travelling conditions, but I am sure they wouldn't be very sturdy upon use given this. These files aren't thick in the middle and then tapered to the edge of the file, like the double edged files, which makes the thinner files weak.

Nice nut slotting tools

By Zeke
(Customer's Reviews) Friday, August 09, 2013


The files seem to be good quality. They cut fairly slowly, which is good to get the slot exactly to its final depth.

Gets the job done right!

By tracer03 from Minnesota
(Customer's Reviews) Friday, July 26, 2013


How did I ever live without these?

Nut & Saddle files

By Aris from Athens, GREECE
(Customer's Reviews) Wednesday, July 24, 2013


Easy work with these files...

Nice cuts

By Joshua Allen from Urbana, IL
(Customer's Reviews) Friday, July 12, 2013


I ordered a set of these, which they don't seem to offer anymore. It's a good set, though I did snap one off on the very first use. It is still useable, though. With the thinner ones, you have to be very careful not to focus all your cutting force on a small area of the file. Use the whole length. That's what I've learned. Anyway, a nice set to have. They cut quickly and make nice round bottoms. Widening the Slot can be a bit tricky.

Nut files

By Rick Gunn from Cumming, Ga
(Customer's Reviews) Friday, July 12, 2013


They cut a perfectly shaped string slot every time!
Much more accurate and repeatable than the small diamond files I was using before.

Great Product

By STLong from Cleveland, Oh
(Customer's Reviews) Friday, June 21, 2013


If you are thinking about making your own nut or modifying a "finished" nut, don't even bother using anything else. Ruined several trying a variety standard wood working tools. Ordered the gauged nut slotting files and got it perfect the first time!

Excellent Files..

By T Jones from Chester, MT
(Customer's Reviews) Friday, June 14, 2013


Works perfect and cut very well.. Not to aggressive that they cut to fast.. Followed the tips from here about using feeler gauges as depth stop it worked perfect...

nut &Saddle Files

By ROGER BARRETT from SAN MARTIN, CA.
(Customer's Reviews) Friday, June 07, 2013


very nice files look well made the only thing is I wish there were more string diameters to choose from

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