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8" Radius Blocks

5.0
  • 159 Reviews
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7-1/4" radius

Item # 0415
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9-1/2" radius

Item # 0405
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10" radius

Item # 0416
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11" radius

Item # 0406
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12" radius

Item # 0417
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13" radius

Item # 0437
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14" radius

Item # 0419
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15" radius

Item # 0420
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16" radius

Item # 0418
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17" radius

Item # 0421
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18" radius

Item # 0438
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19" radius

Item # 0439
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20" radius

Item # 0403
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Flat

Item # 0440
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8" Radius Blocks

About This Item

Accurately true or change a fingerboard's radius and level frets.
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

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

Dimensions: 8" (203.20mm) long x 2-3/4" (69.85mm) wide

See our shorter blocks for spot leveling, and for use as clamping cauls when gluing frets.

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


Instructions

Product Instructions

Radius Block Basics

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

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5.0
  • 4.77 average rating from 159 reviews
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5.0

Does just what it's supposed to do, just how they say it will

By

Verified Buyer


I've built a few blocks myself and have never built one in less than 2 hrs. I needed a 12" for this last build and thew one in the last order, just to save the hassle. For fun I checked the radius against an L.S.Starrett radius gauge and found it to be spot on perfect. I then checked against my granite Rt angle surface plate and found the sides to run parallel with the radiused surface. This is a VERY well made block.

5.0

Good!

By

Verified Buyer


It is necessary to have to everyone!

5.0

Every luthier needs one

By

Verified Buyer


top notch material, easy to use

5.0

EXCELLENT 

By

Verified Buyer


EXCELLENT

5.0

Perfect for the task

By

Verified Buyer


The Wooden Radius Sanding Blocks are ideal for flushing fretboard inlays and any final sanding on the fretboard. Worked a treat!

5.0

Sanding blocks

By

Verified Buyer


Simple and robust, should last for many years. I've even used mine to level the frets.

3.0

Machining Grooves

By

Verified Buyer


The blocks I receive work just fine, but the radius of them aren't perfect. There are definite machining grooves on the radius left over from the shaping process. They're not large, and with human error taken into account during the sanding of a fingerboard they don't affect the final product a noticeable amount, but they're there none the less.

5.0

very nice

By

Verified Buyer


they work great for sanding or clamping

3.0

Good idea, not very good quality

By

Verified Buyer


These blocks do the job, but mine are just not even, some has backbow, some has upbow, not very major, but for me it's just not acceptable. Check yours with a straight edge.

5.0

K.I.S.S!

By

Verified Buyer


These things are simplicity defined. After years of considering, evaluating and trying a multitude of radiusing methods, we finally decided to Keep It Simple Stupid! A nice low angle jack plane roughs out the radius and these handy blocks armed with gold stikit 80 grit gets the job done in under 10 or 15 minutes. 16 bucks for a piece of wood? Yeah. It's worth it. The accuracy is perfect and it makes what some people turn into a Rube Goldberg project into a fast, simple and accurate process. Thanks StewMac!

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StewMac PDF Catalog, page 11 See 8" Radius Blocks
on page 11 of our StewMac Digital Catalog