Chucking reamer comes with straight shank, 0.0910" decimal size, 0.0910" large end diameter, 0.0910" shank diameter, 1/2" flute length, 2" overall length, 4 number of flutes, Chamfer 45 degree, right cutting direction, solid carbide material, bright finish, ferrous & non-ferrous application, 2.31mm metric size.