3 Ways to Use the Butterfly Spline Bit

A butterfly spline, or “bowtie” spline, is a highly useful profile for your projects. It can be used to reinforce or repair boards, join parts together, or simply as a decorative element.

The Butterfly Spline Bit allows you to create these splines in just two passes so you can be creative and efficient.

Freud Butterfly Spline Bit

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Smooth Slots with MicroJig's Relief Bit

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Joinery with Birds Mouth Bits