Knockout Punch, Speed Punch Standard Round, Hole Size Nominal 1.951 in, Hole Size (In. ) 1 951/1000 in, Conduit and Pipe Size (In. ) 1 1/2 in, Number of Pins 0, Max. Capacity Mild Steel (Ga. ) 10, Slug Falls Free, Up to 3 Times Faster Setup and Disassembly, For Punching Holes in Mild Steel, Aluminum, Fiberglass or Plastic, Use With Mfg. No. LS50L11SP and 7906SBSP Punch Driver Kits