Gauged Nut Slotting Files

5.0
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0.010" width

Item # 0821
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0.013" width

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0.016" width

Item # 0827
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0.020" width

Item # 0828
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0.024" width

Item # 0829
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0.028" width

Item # 0830
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0.032" width

Item # 0831
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0.035" width

Item # 0832
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0.042" width

Item # 0833
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0.046" width

Item # 5313
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0.050" width

Item # 0834
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0.056" width

Item # 0835
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Gauged Nut Slotting Files

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 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!

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.

Customer Reviews

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5.0
  • 4.77 average rating from 178 reviews
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Displaying 8 of 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
5.0

Extremely reliable and accurate

By
(Customer's Reviews)


Gauged the nut slotting files from a vendor different from the old, which was more rigid. But this seems more sturdy than the previous .. not bad.

4.0

Must have

By
(Customer's Reviews)


they work great and are a must have for a good setup. you only need 5 for an electric guitar I use .046, .035, .024, .016, and .010

5.0

Nut Files

By
(Customer's Reviews)


Good quality files that I find essential to do a good job. Customers happy then I'm happy !

5.0

These are essential!

By
(Customer's Reviews)


They are expensive, but worth it! Work great and last forever. I used these most recently for my Tele-assembly project. Can't do this stuff without my Stew-Mac tools and parts.

5.0

Worth the Money

By
(Customer's Reviews)


Have used them to make 3 nuts. They are high priced, but are worth the extra $. One word of advice; GO SLOW and check depth OFTEN, they cut so fast.

4.0

perfect

By
(Customer's Reviews)


Those work like a charm. The only reason I gave them 4 star is because I use the XL nickel regular-light strings, which is pretty much a standard, and the size of some files is 0.001" smaller than some of the strings. It's no big deal but it would've been nice to get a perfect fit.

5.0

Basic tool

By
(Customer's Reviews)


I use these files every day and they do the job they are meant to do. Not fancy but they work fine.

5.0

Go nutty

By
(Customer's Reviews)


Great tools, I use them all the time and get great results.

5.0

Great Saw!!

By
(Customer's Reviews)


Cuts at the perfect speed so you dont cut to much. I ordered the lowest gauge as a start for my slots. This one was a little too thin for me but would work perfect for a 10 gauge string. All in all they do what they say :)

5.0

Right tool for the job!

By
(Customer's Reviews)


I have a full compliment of stew mac nut files. Both these style and the double sided files. I really like the handle on the double sided file. Makes things easier. However, these work just fine. I cringe whenever I see people trying filed feeler gauges and torchtip cleaners instead of real nut files.

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