Online Extras - Woodsmith Magazine

Online Extras & Sources

Mortise & Tenon Solutions

An upcut spiral end mill bit is specifically designed to cut mortises. (It's actually a router bit, but can be used in a drill press that's set at its highest speed.)

Unlike Forstner bits, a spiral end mill bit pulls chips out of the mortise, which eliminates heat buildup and clogging. But the longer cutting edge (and the higher speeds) also makes for a cleaner cut, so the sides of the mortise end up smooth.

Spiral end mill bits are readily available at local woodworking stores or through the mail-order sources listed below.


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