Highly recommended time saver! This machine tooled aluminum adapter will fit onto any angle grinder with a 5/8" x 11 tpi spindle. It allows wobble-free, high speed drilling and can reduce your log inoculation time dramatically. For use with our high speed 13mm, 12.5mm, 12mm or 8.5mm drill bits only (this adapter will NOT accept the 5/16" brad point drill bit or the 8.5mm and 12mm HEX shaft screw tip bits, and is NOT recommended for use with CORDLESS angle grinders).
