Powerful workhorse features a T-handle design for increased leverage and easier punching action. Patented technology delivers precision cutting of holes in letter, legal and A4 size paper. Metric and inch positioning on face plate. Heavy-duty steel. Nonskid base won't damage desk. Includes three punch heads. Sheet Capacity: 40; Operating Method: Manual; Number of Holes: 3; Hole Diameter: 9/32 in.