This square disc cutter comes with 7 hardened steel punches ranging from 4-16mm in width and a square steel disc cutting block. The punches are machined flat and smooth at the cutting end to create perfect square blanks every time, and beveled at the other end for use with a heavy mallet or hammer. The black handle rotates to open and close the gap that your sheet metal slides into for a secure grip. This disc cutter will cut up to 18 gauge metal, and can be used on a rubber mat or block to ease the cutting process.

To use it, remove all punches from the block, and select the size punch you would like. Place your sheet metal in the slot, adjust the lever to fit your metal, and place your punch, sharp side against the metal, in the correct slot. Strike the beveled side of the punch with a heavy mallet until it pierces through the sheet metal. Be careful of your fingers and other items on your work surface.

Punch sizes (mm): 4, 6, 8, 10, 12, 14, 16

Punch sizes (inches): 0.16, 0.24, 0.31, 0.39, 0.47, 0.55, 0.63,