If you need to punch holes in metal, the Greenlee K2PM-0305 Knockout Punch is the tool for you. It has a laser ID marking system that makes it easy to line up the punch with the mark on your workpiece. The 1 7/32" hole size can accommodate conduit and pipe sizes of 1 1/4". The slug splitting feature makes it easier to break through mild steel when punching out. With a knurled edge, this knockout punch provides added control while operating. The Greenlee Knockout Punch is ideal for making clean cuts without any excess material left behind.