Chucking reamer comes with straight, 0.0615" decimal size, and large end 0.0615" diameter, 0.0615" shank diameter, 3/8" flute length, 1 1/2" overall Length, 4 number of flutes 4, 45 degree chamfer, cutting direction right, solid carbide material, bright finish, ferrous and non- ferrous application, 1.56mm metric size.