Fret Slot Depth Gauge

  • 35 Reviews
  • Write a review

Be sure your fretwire will fit! Don't wait until after you've installed a fret to discover the slot wasn't quite deep enough!

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Fret Slot Depth Gauge

Item # 5435
In stock, ready to ship!


Total: $0.00
Quantity: 20


Fret Slot Depth Gauge

Before you try to put frets in, make sure the slots are deep enough!

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Be sure your fretwire will fit! Don't wait until after you've installed a fret to discover the slot wasn't quite deep enough!

Dan Erlewine developed this remarkably handy "look-before-you-leap" gauge for quickly comparing the wire to the slot. Simply hold the flat edge against the fret tang, note the height of the tang against the reference lines, fit the appropriate curved edge into the slot, and compare the lines again.

The gauge is machined from .018" (.46mm) stainless steel for durability in the repair shop, and it fits into any fret slot. It's a big help for refret jobs (it fits bound fingerboards), for setting the depth stop on our adjustable fret slotting saw, and for setting the cutting height of our fret slotting table saw blade. The non-glare etched surface is easy to read, and the curved edges fit all popular radiused and flat fretboards.

Ratings & Reviews

Fret Slot Depth Gauge

  • Based on 35 Reviews
Displaying 2 of 4 1 2 3 4
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Worked just fine

By Andrew H. from South Carolina, USA
(Customer's Reviews) Tuesday, June 18, 2013

I got this for a new fret job... seemed a little unnecessary for my new build, but I see the value in a refret job. Otherwise, it worked great.

Helpful Tool

By Leapin Lizard from Monument, Colorado
(Customer's Reviews) Thursday, May 16, 2013

This gauge helped me keep track of my fret slot depth on a recent partial refret job. It beat using a rule or any other method I could have come up with.

Fret slot Depth Gauge

By Ian Toalster from Brisbane, Queensland, Australia
(Customer's Reviews) Thursday, January 17, 2013

Great tool for checking your slots are still the correct depth after gluing the fretboard to the neck and sanding the final radius.


By bluesplayerx from ca
(Customer's Reviews) Thursday, September 13, 2012

this is good for a quick check of slot depth

grreat tool

By Ivan Souza from England
(Customer's Reviews) Wednesday, August 22, 2012

prefect for fret job usefull

What a great help!

(Customer's Reviews) Monday, July 09, 2012

This little Gauge works great and is a time saver. Worth every penny!

A great tool.

By Gusty from Ro
(Customer's Reviews) Friday, July 06, 2012

A great tool.

Very useful.

By Rodrigo Gomes from Brazil
(Customer's Reviews) Monday, May 21, 2012

Important tool for the job scale.


By Peter Lagios from Clear Lake, Iowa
(Customer's Reviews) Sunday, April 29, 2012

I'm a bit confused as to what line I should be gauging the slot depth to, as there are 2 thin lines printed on the metal. Otherwise the metal fits in nicely and even scrapes out a bit of debris that may be trapped in the groove.


By niponz from Thailand
(Customer's Reviews) Thursday, January 12, 2012

Perfect tools

Displaying 2 of 4
1 2 3 4

Shown on page 14 of our latest catalog.