Ruko a214 195 130 piece hss g drill bit set ruko a214195 p a 130 piece hss twist drill bit set complying with din 338 type n p p the drills are ideal for steel cast steel alloyed and unalloyed up to 900 n mm sup2 strength grey cast iron malleable cast iron spheroid iron and pressure casting sintered iron nickel silver graphite short chipping aluminium alloys brass and bronze p ruko a214195 hss g drill bit set 130pc