It ought to me accurate enuf to interpolate:
-2 mm for chisels and -2.5 mm for plane irons should give you a 1degree
change.

Walt C



"AAvK" wrote in message
news:Qi1Xd.8941$qf7.416@fed1read03...

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?

--
Alex
cravdraa_at-yahoo_dot-com
not my site: http://www.e-sword.net/