40-Sheet Heavy-Duty Three-Hole Punch

40-Sheet Heavy-Duty Three-Hole Punch Adjustable paper centering guide Punches through a stack of paper easily. 9/32" holes fit three-ring binders. Lock-down handle; large capacity chip pan. Steel. Sheet capacity is based on 20-lb. bond. (As more heads are added to a punch, the sheet punching capacity decreases.). Sheet Capacity: 40; Number of Holes: 3; Hole Diameter: 9/32 in; Operating Method: Manual.