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StewMac Safe Slot Nut Guard

4.5
  • 19 Reviews
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StewMac Safe Slot Nut Guard, Complete Set
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Complete Set

Item # 1795
In stock, ready to ship!

$97.74

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StewMac Safe Slot Nut Guard Neck Caul
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Neck Caul

Item # 1796
In stock, ready to ship!

$41.59

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StewMac Safe Slot Nut Guard String Spacing Rule
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String Spacing Rule

Item # 0674
In stock, ready to ship!

$10.99

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StewMac Safe Slot Nut Guard Acoustic Wedge
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Acoustic Wedge

Item # 1797
In stock, ready to ship!

$12.47

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StewMac Safe Slot Nut Guard Electric Wedge
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Electric Wedge

Item # 1798
In stock, ready to ship!

$11.99

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Feeler Gauges

Feeler Gauges

Item # 1811
In stock, ready to ship!

$20.70

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StewMac Safe Slot Nut Guard

About This Item

Stop your file before the slot’s too deep!

Cutting string slots is delicate: if you cut one slot a little too low, you've blown the nut and have to start over. StewMac's own Don MacRostie devised the Safe Slot™ to make accurate nut slotting fast and fumble-free. He shows us how it's done in the video!

A trick the pros use:
Stack feeler gauges against the nut to set your slot depth. When the slotting saw touches the feeler gauges, you've hit your depth. The Safe Slot Nut Guard holds the feeler gauges tightly against the nut, and curved to the radius of your fingerboard. This leaves both hands free for filing. You're able to work faster without worrying about cutting too deep.

  • Holds multiple feeler gauges
  • Pulls gauges tight to match fretboard radius
  • Locks in place against the nut. No slipping!

Perfect string spacing without math
For good playing feel, don't use equal spaces between the strings. Wound strings are thicker, so they need more space than thinner treble strings. In fact, every string space needs to be a little different to feel right in the player's hand.

This set includes tapered wedges for both electric and acoustic guitars to mark out your trim line and a slim version of our String Spacing Rule to show where to put your string slots. Slide it into the Safe Slot, same as a feeler gauge, and see exactly where each string belongs. No measuring, dividing or calculating. Replace the rule with your feeler gauges and you're ready to cut nut slots. Thanks to luthier Ron Baran for the idea of adding this slim spacing rule to the set.

The Safe Slot's felt-padded caul adapts to most neck shapes, and any fingerboard width up to 2-1/16".

    Safe Slot Nut Guard Complete Set includes:
  • Safe Slot Nut Guard
  • Electric and acoustic wedges for trimming the nut top
  • String Spacing Rule to locate nut slots
  • Feeler Gauge Set (size 6" x 1/2")
  • includes 11 thicknesses:
    .016" .022" .028" .034"
    .018" .024" .030" .040"
    .020" .026" .032"


Video

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4.5
  • 4.47 average rating from 19 reviews
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5.0

LOVE -  But one note of warning!

By

Verified Buyer


I seriously love this thing. But be careful not to over-tighten the neck caul when bending feeler gauges to match neck radius. Over-tightening (and it's 'very' easy to do) will cause a hump at the middle and completely negate the tool's purpose. Trust me, it's very easy to make this mistake without realizing it.

4.0

Thicker headstalk

By

Verified Buyer


Having to learn how to use and get it right. Some necks are beefier toward the headstalk. Not as easy to use as I thought.

4.0

String spacing ruler

By

Verified Buyer


I bought the string spacing ruler only, Im going to buy the guard that goes under the neck to hold the ruler, I figured I wouldnt need it but its a pain to hold the ruler & try to mark the nut, but I like the ruler it beats me trying to guess at the spacing

2.0

Cool but...

By

Verified Buyer


Really nice idea but does not work on necks with volute...

Response from StewMac


Hi Sergio,
Thank you for sharing your honest feedback with us. Quality and 100% Total Satisfaction is our goal every day. If a product fails to work as intended in your shop, we'll take back the product and replace it or refund you. Call us at 1-800-848-2273 so we can make it right.

In the meantime, I've placed your suggestion with our product development team -- customer comments like yours have been the catalyst to many changes to our products.

5.0

Worth every penny

By

Verified Buyer


This is one of those "why didn't I think of this" tools. A must have even for the non-luthiers who have to slut nuts every once in a while.
Saves lots of time and back and forth, precise.
Definitely a must!


4.0

Safe Slot Nut Guard

By

Verified Buyer


Great idea and good for a safe start. Fret height is the true definer here. If thats not right (fret height definition too low) you got problems for the beginner. You would be wise in purchasing gauged nut saws to save file wear and breakage. Otherwise if you top the nut height right you won't have to go so deep with files. Well made as everything this company makes is. I'm still deciding on it. Don't get me wrong, Stew-mac is a guitar tech's heaven, I love tools and especially ones that speed-up work and raise quality. Thanks for the forum!

5.0

Amazingly simple

By

Verified Buyer


This tool makes the job so much easier.It takes the guess work out of how deep the slots should be. I highly recommend this tool! It's a must have!

5.0

Easy Slot

By

Verified Buyer


A great little tool. Much easier than trying to hold the feelers by hand. With the correct amount of tension applied the feelers conform exactly to the fret-board radius to give perfect depth slots.

4.0

Its a cool tool but...

By

Verified Buyer


Hi guys! I received the Safe Slot Nut Guard last week here in Portugal and already used it. Its a cool tool...shurely a helper, but the old japanese 70's acoustic I was fixing and making a new nut, had a the headstock in a deep angle, so the Nut Guard had to stay a little far from the nut. It helped me making me the new nut but I had to be carefull not to damage the fretboard with the file. Nevertheless im glad I bought it

3.0

Doesn't work with necks having a thumb crest

By

Verified Buyer


Many banjos have a knob or crest on the back side of the neck opposite the nut as a place to put one's thumb. The yoke of the safe slot does not work with such a design.

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