Graaille

by Mo Pinel - turned into usable english and reposted by Luckylefty.

This method can make a lot of changes in pitch both forward reverse and left right workable....

For testing front bevel....the important part under the flat of the thumb. If not correct one can get serious nerve damage and black spots under the front base of the thumb(many increasing their forward pitch experience these black marks and electric shock feelings if they do not increase their forward bevel ...