Rounded Tenon Marking Template

A marking guide for rounding square tenons to fit into round mortises. When rounding them by eye I waste a lot of time going back and forth to the mortise. This lets me get the correct shape much more quickly.

The STL files are for a template with an interior width of 0.375" and 0.385". 3/8" is a common tenon width in (imperial...) woodworking and I found the 0.385" template to fit a little easier over my tenons. The Fusion 360 file is parametric so you may print whatever size you need.