2" Boring Combo Set with 9 Pc 1/2" Boring Bar Set
This is a set of 2 inch diameter, 1/2 inch boring bar hole, 5/8 inch max offset, and 0.001 inch graduation boring heads. The R8 shank is 7/16 inch x 20 TPI and is of 0.001 inch graduation. This boring bar set is 9 pieces of C6 steel of 1/2 inch shank diameter.