Gauged Nut Slotting Files

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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 13 of 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
5.0

Best Tool For The job

By
(Customer's Reviews)


I only ordered these gauged nut files on the 20/10/2011 and they arrived today, top marks for service. I purchased these files to complete a setup on my 1973 American Strat that had a split nut, after a great deal of contemplation I decided to replace the standard nut with an Earvana compensated nut. As was to be expected when I fitted the Earvana nut the action was far too high, although this was disappointing it was far better being too high than too low. I have now very accurately re-cut the nut and I am pleased to say that with the aid of these very high quality files my strat is now playing in tune for the first time since I purchased it in 1973.

I will still reserve judgment until I have played it long term, but initial results on my Peterson tuner indicate that the guitar is playing in tune right up to the twelfth fret apart from some 6 positions of minor -1% flats. Prior to changing the nut there was hardly a place below the 8th fret where the strings were in tune as they were mostly all sharp, so as I say the nut is doing what it is supposed to do. I only wish that when I ordered the files I had also ordered the ôNut Slotting Gaugeö at the same time as I had forgotten how time consuming it was to set up a nut with the standard feeler gauge method. I could have saved a lot of time and been more accurate with the Nut Slotting Gauge, I will have to put it on my wish list. The nut files that I purchased are as near as possible to my preferred string gauge i.e. 0010, 0013, 0016, 0024, 0035 and 0046ö, they are very fast at removing the required material and are a precision tool of excellent quality and very good value.

5.0

Great tools, but I need ONE more . . . 

By
(Customer's Reviews)


These are fantastic. Good length, cut quickly & cleanly, just a perfect, simple tool. Now how about a .125 (it's an eighth!) so I can cut some low B slots on a 5-string bass nut?

4.0

gotta have em

By
(Customer's Reviews)


wouldnt do a nut job without them,but how about bringing out some more thicknesses to choose from so any size string can have that perfect slot size?

5.0

Nut files

By
(Customer's Reviews)


These are a necessity for anyone who sets up guitars.

4.0

Nut files, nutcase

By
(Customer's Reviews)


Nutcase because I could have saved myself a lot of effort and frustration if I had simply purchased these years ago instead of fluffing around with needle files!
Needle(es) to say that these work great for E A D G on 4 string bass, but one for the low B would be helpful in the future.

5.0

Nut File Fix

By
(Customer's Reviews)


I just recently purchased a set of nut files to finish off my Stew Mac Dreadnaught kit built earlier this year. I built the guitar under the instruction of a professional luthier, who had all the tools but we were limited on time of use for the class. I got as close as I could in time allowed but not quite where I wanted to be.

I've since use my new nut files to complete the job. The action at the top fret in now perfect, the files were the exact tool needed and made the work much easier without having to guess. Thanks Stew, I plan a few more guitar making/repair ventures so keep the rest of those tools handy, I'll Be Back.

5.0

what the doctor ordered!

By
(Customer's Reviews)


the excellent quality & value of tooling from stew-mac makes any repair job/build project easier...the nut slotting files assure a precise job every time. keep 'em clean for a proper cut.

5.0

Great file

By
(Customer's Reviews)


These files work great. I have these for the in-between sizes for the two sided files.

5.0

Great files

By
(Customer's Reviews)


These are very accurate filesàmake sure you clean them often. I have every size (some IÆve had for years) and I use them all the time

5.0

Perfect tool for the job

By
(Customer's Reviews)


In the beginning I made a few nuts with just 2 or 3 files, rocking them back & forth to file the appropriate size slot, but recently purchased a broader selection of sizes, and my nut making & setups are going much more quickly, and with greater accuracy!

Displaying 13 of 18
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