Fret Slot Depth Gauge

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Fret Slot Depth Gauge

Item # 5435
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Fret Slot Depth Gauge

About This Item

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.


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  • 4.74 average rating from 35 reviews
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Does the job

(Customer's Reviews)

Nice item, though I thought it would be bigger, according to the pictures.


Inavaluable tool

(Customer's Reviews)

One of our star performers in the workshop . Refrets are so much easier to do when you have a way to ensure the slots are all clear of debris. We have one on every workbench. Highly recommended.


Great tool for slot depth

(Customer's Reviews)

The addition of more lines for the depth of the slot made this tool perfect.

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StewMac PDF Catalog, page 14 See Fret Slot Depth Gauge
on page 14 of our StewMac Catalog PDF

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