The CM-06 Drill Grinding Attachment for CUTTERMASTER type machines has been modified to grind step drills and countersinks.  With the addition of our x axis feed table the Tradesman Machinist is now a DC Variable Speed Countersink Grinder.  We recommend our plated CBN face wheels, which are superior material removers when used with a correct speed grinder, that allow you to take heavy cuts (wide countersink faces) while keeping your tools cool.