21Pcs, thickened iron box, M35 material, baked yellow diamond, 135° double back angle

M35 material, baked yellow diamond, 135° double back angle, 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8"