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Gauged Nut Slotting Files

5.0
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0.010" width

Item # 0821
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0.016" width

Item # 0827
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0.024" width

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0.035" width

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0.042" width

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0.046" width

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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

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 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.


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
  • 4.76 average rating from 229 reviews
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5.0

slotting file

By
(Customer's Reviews)


A little pricey but as we know you get what you pay for, will buy more to complete my set

5.0

Gauged Nut Slotting Files

By
(Customer's Reviews)


They work great.

5.0

Great files.

By
(Customer's Reviews)


Very nice files, as expected.

5.0

Great files

By
(Customer's Reviews)


I used these to lower the first fret action on my Martin D28 and they worked perfect.

5.0

Gauged Nut Slotting Files

By
(Customer's Reviews)


Perfect tools for slotting nuts to the right width and depth.

5.0

Instant buy

By
(Customer's Reviews)


File nuts without a set of these files is a VERY time consuming task. These files save me days of work, I'm not joking, days.

1.0

Nut slotting files

By
(Customer's Reviews)


Sadly, Stew-Mac's quality on these hasn't improved one whit since I last tried them. The shape of the cutting edge is nowhere near hemispherical - not even rounded.

Not recommended.

Response from StewMac

Thank you for your feedback on these files. If you are not happy with your purchase, we would be happy to take them back for a refund or store credit. You can give us a call or use the "Contact Us" link on our website. We have a 100% satisfaction guarantee and we stand behind our tools and parts.

- Spencer, Customer Support

5.0

These are great!

By
(Customer's Reviews)


I use them all the time. They are fantastic!

2.0

Pretty Good Files

By
(Customer's Reviews)


These are OK files if it's all you can afford and they are on sale. They do cut nice and smooth. But I am not a fan of OK tools. If you want to do quality work, buy the best. The means you want the 45XX series double edge tapered files. Those cost three times more but are ten times better.

4.0

Gauged Nut Slotting Files

By
(Customer's Reviews)


I have been using these files for a few years. I believe I have 6 or 8 of them and usually start a slot with a razor saw and follow with the appropriate StewMac file. These shorten the time it takes to slot the nut and increase the accuracy and cleanliness of the job. When I do not have the correct file size I use the next thinner and finish the job with folded sandpaper.

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

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