Chucking reamer comes with straight, 0.0775" decimal size, and large end 0.0775" diameter, 0.0775" shank diameter, 1/2" flute length, 1 3/4" overall Length, 4 number of flutes 4, 45 degree chamfer, cutting direction right, solid carbide material, bright finish, ferrous and non- ferrous application, 1.97mm metric size.