Ball Lock Punches 1.material-hss,SUJ2,or as refered 2. ... -HRC62-64 3.per PUNCH,MISUMI standards 4.high precision Ball Lock Punches processed by Dalian Guoyu Precision Machinery Co.,LTD ... part,mould componentsprecision mould parts Applied in automobile die, precision plastic mould,punch die,air conditioning fin die, semi-conduct encapsulation ...