Millimeters = equals degrees with the most basic vise type of guide, bought mine at a Rockler store. The instructions only give the following:
Chisel projection: 30mm = 30º / 40mm = 25º Plane iron projection: 38mm = 30º / 50mm = 25º
Time for 1º more for the micro bevel of either, can anyone tell me how many less millimeters to subtract from the projections?