This adapter vastly increases the speed of the log inoculation process by allowing you to use our specialized mushroom drill bits on an angle grinder. Angle grinders run at much higher RPMs than hand drills.
For 5/8-11'' spindles (standard for most USA, Canada, and UK angle grinders).
Adapters that fit M14 x 2.0 and M12 x 1.75 spindles may be available. Call!