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Gauged Nut Slotting Files

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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
  • 4.78 average rating from 206 reviews
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5.0

Top quality product

By
(Customer's Reviews)


I run a professional shop now in our 20th year, and 40 years behind the bench: these tools are great: smooth cut, clean surface. I'll fold a piece of 800 and finish the slot and edges to debur .

Highly recommend for the pro and amateur tech or builder. The nut spacing rule is handy as well!

5.0

Just as dedcribed and an essential tool.

By
(Customer's Reviews)


Slowly buying all of the sizes. Do a great job. Essential.

5.0

Ukulele nut

By
(Customer's Reviews)


Just what i needed for slotting nut for ukulele e string.

5.0

Setting up my copy of a Gilmour Strat

By
(Customer's Reviews)


I have assembled my own Franken-strat which is made up of parts bought on ebay it's a copy of David Gilmour's iconic Stratocaster. I needed to be able to get the nut slots set up accurately and bought the appropriate files. They are superb and got the job done really quickly and accurately. the guitar plays like a dream now. Thanks for a great product dispatched quickly at a great price.

4.0

Worked as excected

By
(Customer's Reviews)


I have a few guitars which needed nut maintenance, strings binding etc, I hoped that they might have had an abrasive side, but they did the job fine.

5.0

excellently made

By
(Customer's Reviews)


The files work perfectly. they are very aggressive in their ability to cut. for me they are better as they get broken in. another thought when using them is as you approach your final depth slightly lubricate the file teeth and this will provide a smoother final cut.

5.0

Perfect files for the job

By
(Customer's Reviews)


Love these files. Just clean them good and often and they should last for awhile. Just hold the thinner ones between your fingers near the tip for a stiffer cut or at the handle and use the back stiffer portion. Don't use long strokes by holding it at the handle and filing in the middle of the thin file.. Trying too long stroke the cut will bend or break the file... Just use common sense.

3.0

So, So

By
(Customer's Reviews)


I ordered the whole set and the .10,.13 are super flimsy. The rest were ok.

5.0

Great files.

By
(Customer's Reviews)


I had delayed a long time contemplating whether or not it was worth the money to get nut slotting files. I have a thin needle file that I've used to make a few nuts...and I got pretty decent results after a LOT of filing. These files are fantastic. I personally purchased 6 different gauges ranging from .01" to .050" but for those looking to save money, you can get by with 3 sizes. I've used these to make a few dozen nuts and to touch up and re-cut existing nuts and they still file perfectly. I would recommend these over the double edge files because you get two sides on each of these files so when one begins to get dull, the other side is fresh. Great files.

5.0

My favorites so far

By
(Customer's Reviews)


I like these best of all the nut slotting files I’ve tried. The bottoms of the slots come out truly rounded. I have a set of similar slotting files, purchased from StewMac about 20 years ago, and the current files are an improvement - they are definitely rounder - closer to a half circle than the old ones.
The one difficulty I’ve had with these is that when the very thin files get down to a certain depth, the file starts to get hung up in the nut material – the same way a saw might get hung up in wood when you get too deep...but that’s not a problem with the file, per se. I may fix this by cutting the top of the nut lower before I deepen the slots.

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

12MB File

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