Chucking Reamer comes with straight, decimal size - .3110", large end diameter .3110", shank diameter - .3110", flute length - 1-1/8", overall length - 3-1/4", number of flutes - 6, chamfer 45 degree, cutting direction right, material - solid carbide, finish - bright, application - ferrous, non-ferrous, metric size - 7.9mm.