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Magnetic Shim Sets Improve Set-ups & Make Layouts Easier

Infinity Cutting Tools |

Fastcap Magnetic Shim Sets: The Ultimate Setup Tool for Woodworkers

Setting precise blade heights, router bit depths, and fence offsets is essential for clean, accurate woodworking results. Fastcap’s Magnetic Shim Sets, available in both imperial and metric measurements, make these adjustments fast, repeatable, and incredibly easy—no rulers required!

Stackable, Magnetic Precision

Metric & Imperial FastCap Magentic Shims

Each shim in the set features strong embedded magnets that allow the pieces to stack securely, giving you precise and repeatable setups. The imperial set includes 1/16" thick red shims, while the metric set includes 2mm thick blue shims. Need a specific height or distance? Just stack the required number of shims and you're ready to go.

Built-In Marking Tool

Bonus marking blade in the Imperial Set

New in the imperial set is a yellow spacer with a built-in kraft knife blade. Simply rotate the blade out, stack your desired number of shims, and use the knife to scribe an accurate reference line directly onto your workpiece. It’s perfect for layout tasks where measuring and marking need to be both quick and accurate.

Marking with the bonus blade.

Ideal for a Variety of Workshop Tasks

Three applications.

Whether you're setting:

  • Router bit height
  • Table saw blade height
  • Fence offset distance

These magnetic shims eliminate the guesswork and remove the need to fumble with rulers or feeler gauges. The magnetic feature holds everything in place while you adjust, saving time and improving accuracy.

Corner Radius Guides Included

Shim with multiple radii marked.

Fastcap didn’t stop at setup tasks. Each shim includes radius markings on both the interior and exterior corners, so you can measure or trace common corner radii directly onto your projects.

Great for marking radii on projects.

Space-Saving and Shop-Ready

The magnets making storage a cinch!

When you're done, simply restack the shims for compact storage. The magnetic feature keeps everything together in one tidy bundle—ready for the next project.

Buy and Save

Get the most flexibility by picking up both the imperial and metric shim sets in a money-saving combo pack. It’s the ideal setup solution for woodworkers, makers, and professionals who demand precision and efficiency in their shop.


Shop Fastcap Magnetic Shim Sets at Infinity Cutting Tools and make your next setup faster, more accurate, and easier than ever.

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