SAM_0582.jpgSAM_0581.jpgThe old goat is back with a project. I have a drill grinder for up to 44mm drills. Conical point only. This different style attachment should go bigger, as well as being useful for 4 facet grinding on drills I can't do with an ER32 collet chuck. For drills up to 25mm the brass button is used in the transverse slot to index the drill. Over that size the axial slot is used. A micrometer depth stop will slide behind the drill and the edge angle set with a protractor on the base. The design has a change already and I'll put a pivot in the bracket as this will be easier than changing the wheelhead angle.
BC