2 years ago - Translate

There are basic hand-held punching machines available such as punching pliers. They typically have steel arms and jaws with soft-grip rubber handles and a heat-treated hardened steel punch that is screwed in to its uppermost jaw and held tightly in place with a nut. Spare punches of various sizes and shapes are available.
http://www.qiaosenmachinery.co....m/punching-machine/s