4" Radius Blocks Essential Set, Set of 5

  • 13 Reviews
  • Write a review

Save money with this set! Our 5 most popular sanding blocks for spot-leveling frets and fingerboards. Just add sandpaper. They make great fret-gluing cauls, too!

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4" Radius Blocks Essential Set, Set of 5

Item # 0431
In stock, ready to ship!

$54.75 $43.80

Total: $0.00
Quantity: 20


Save money with this set! Our 5 most popular sanding blocks for spot-leveling frets and fingerboards. Just add sandpaper. They make great fret-gluing cauls, too!

Create an accurate radius quickly and without guesswork.
We make these hardwood blocks for use with Stikit Abrasives, to radius a fretboard quickly, accurately and without guesswork.

Shaping fingerboards: use 80 through 220-grit
Leveling frets: use 220 through 400-grit

Set includes the 5 most popular fretboard radii used in guitar building and repair:
7.25", 9.5", 10", 12", 16"

When working on compound radius fretboards, simply change blocks as you progress along the neck.

These 4" blocks are used for spot leveling, and can also be used as a radiused clamping caul when gluing frets. The longer 8" blocks are better for consistent, full-fingerboard radius leveling.

Dimensions: 4" (101.60mm) long x 2-3/4" (69.85mm) wide

What's your radius?
Quickly find the curvature of a fingerboard or bridge with a set of radius gauges. Use them frequently to check your work as you smooth or shape a fingerboard or frets: a quick visual check keeps you from accidentally altering the shape—a mistake that's easy to make and hard to fix.

Radius Gauges

Product Instructions

Radius Block Basics

An explanation of the different uses of a radiused sanding block.

Ratings & Reviews

4" Radius Blocks Essential Set, Set of 5

  • Based on 13 Reviews
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Good as it seems

By Anthony E from Brazil
(Customer's Reviews) Friday, October 31, 2014

These blocks deliver what they promise, very straight forward, they make things very simpler, with the quality only Stewmac can deliver

Perfectly crafted...

By GPosada from Colombia
(Customer's Reviews) Wednesday, October 23, 2013

I made this gift to my luthier since he lost a previous set. Wish they had a lacquer finish or some sort of protection to the wood... nothing you couldn't do yourself.


By geetar_geek79 from North Hollywood, CA
(Customer's Reviews) Monday, October 14, 2013

This is my first time leveling and it works simply enough!

Exactly as advertised

Thursday, August 23, 2012

Excellent to hold, won't slip. I bought the 4" because I like to take time with my guitars I don't like to rush them.


By fogrider
(Customer's Reviews) Tuesday, November 22, 2011

Essential tools for sanding fingerboards and leveling frets. Used them on a compound radius fingerbord, and it turned out great.

Stop making it so easy!

By Dan at Players Repairs from Los Angeles, CA, USA
(Customer's Reviews) Friday, October 28, 2011

Good lord! I'll be out of a job if you keep selling these! Wonderful product. Makes my life/job so much easier I "almost" feel guilty telling my customers how much "hard" work I had to do on their necks/frets.

Works Great

By Spider Web Music from Howland- Warren, Ohio
(Customer's Reviews) Monday, June 20, 2011

Works great for quick leveling and radiusing of frets. Saves a lot of time and guess work when using straight blocks for the same application. Pictured is an ibanez 12 string in for a fret leveling. -Matt Dreher

Fret Work Must Have

By Mike T. from North Carolina, USA
(Customer's Reviews) Thursday, March 10, 2011

If you are going to repair or build necks, these are a must have.

4" Radius Blocks

By Dane Paul from Nashville
(Customer's Reviews) Saturday, January 29, 2011

I love these radius blocks. There small enough to go over the higher frets where you need 'fall off'.

4" Wooden Radius-sanding Blocks

By George Horak from Czech Republic
(Customer's Reviews) Tuesday, January 04, 2011

It¦s necessary for all jobs with fretboards and fretjobs.I bought set and saved money. It¦s made from good wood, with very good accuracy.

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