Tool: FitFinder Wave Reversible Glue Joint Bit Shop Now

Manufacturer: Microjig

MSRP: $99.99

Glue-line router bits aren’t new. Look at almost any manufactured butcher-block countertop and you’ll find standard finger-joint glue lines holding the boards together. However, a new bit from Microjig offers a fresh take on the concept. Their reversible Wave Glue Line bit adds a decorative element to the joint while simplifying setup.

The Wave Glue Line bits come in two sizes. The smaller 1/4″ shank version features a bearing at the top edge to limit depth of cut, making it especially useful for curved glue joints. The larger 1/2“ shank bit has a taller cutting profile and is better suited for larger panel glue-ups. What sets these bits apart is the inclusion of milled reference areas designed for use with the MicroJig FitFinder. This reference surface allows for quick, accurate height setup—something that’s often tedious with traditional glue-line bits.

Why use a glue-line router bit like the Wave? For one, it produces a more visually interesting joint than a simple butt joint. The increased surface area improves glue strength, and the interlocking profile helps keep boards aligned during clamping, reducing slippage.