-high speed steel material guide ejector leader pin, giuded ejector shoulder leader pin, straight leader pin, -feature:4 time salt bath 1 time tempered Hardness: 58-60hrc Tolerance within 0.005mm -used for injection mould and casting mould . Din9861d, din1530d, din153oa, ah, jis, hasco, iso standard. Packing:bulk in cartons in pallet.