Swingline 75-Sheet Heavy-Duty Three-Hole Adjustable Punch, 9/32 inch Holes, Putty/GrayStrong and durable punch makes quick work of the most demanding jobs. Treated with antimicrobial protection to prevent the growth of odor-causing bacteria. Rubber padded grip and one touch adjustment disk. Letter size. Easy-to-remove chip tray makes clean-up easy. Metal construction. Sheet Capacity: 75; Operating Method: Manual; Number of Holes: 3; Hole Diameter: 9/32".