... 5) Coated or not coated... We supply you various drill bit, solid carbide drills, cemented carbide drills including step drill, twist ... . We also supply milling cutters, reamer, solid carbide saws, indexable insert, other tungsten carbide products. .We accept the specification as your ... .0014393007D-1900007D-1900C19.0019.00153101007D-2000007D-2000C20.0020.00153101 drill bit