Chucking reamer with straight, fractional size 25/64", decimal size 0.3906", large end diameter - 0.3906", flute length - 1-1/4", overall length - 3 1/2", number of flutes - 6, chamfer- 45 degree, cutting direction right, material- solid carbide, bright finish, application- ferrous, non-ferrous, metric size- 9.921.