2 Hole Metal Punch | PUN-400.00 Ideal for punching hole sizes 1.60 and 2.30 millimeters in metals and plastics Pliers made of tool steel Punch sizes are 1.60 millimeters (1/16 inch) and 2.30 millimeters (3/32 inches) Punches are tempered to make precision holes in soft metal up to 24 gauge Screw action makes holes without harming metal