Straight Ejector Pins 4mm Dia 65Mn Steel Round Tip Punch 150 Length for Mechanical 5Pack

Description: 1. The ejector pin punch is long straight with non-chipping surface and has a round tip. Not easy to be bent or deformed when working. 2. Made of 65Mn manganese steel with quenched and tempered surface treatment and HRC: 48-52rc. This ejecting pin punch has the characteristics of high elastic limit high strength high harden-ability and good machinability. 3. The steel straight ejector pin can also be called a punching rod or punching needle which is an essential metal part on stamping die in mechanical tools. 4. Suitable for working in high temperature operating environment. Applied in fitter die manufacturing leather crafting machinery maintenance and processing industries. Eject or push the plastic parts when in plastic injection punching.