Shinwa 15-30mm Taper Gauge woodworking rifflers If you add them it

If you add them it may be better to have it done by a machine shop

You have the option of different head heights ranging from 1mm to 3/4"

repeatable kerf

countersink

Shinwa 15-30mm Taper Gauge woodworking rifflers If you add them itThis taper gauge from Shinwa is a very useful tool for making a variety of measurements including size of dados, holes, pipes, gaps etc, between 15 and 30 mm. It can also be used to quickly set up plunge depths on drill presses and routers. When using the gauge to measure gaps between parallel surfaces the reading is read directly from the gauge and when measuring diameter, a correction is applied using the table on the back of the gauge to compensate