Chucking reamer comes with straight shank, 0.1690" decimal size, 0.1690" large end diameter, 0.1690" shank diameter, 7/8" flute length, 2-3/4" overall length, 4 number of flutes, Chamfer 45 degree, right cutting direction, solid carbide material, bright finish, ferrous & non-ferrous application, 4.29mm metric size.