1/4" Punte per Trapano al Cobalto 10 Pezzi, M35 HSS Set di Punte per Metallo Duro, St...
【M35 Cobalt High Speed Steel】Industry grade M35 high speed steel drill bit set, much harder than HSS used in other similar drill bits set. These drill bits contain 5% Cobalt, which increases wear-resistance and durability.