• Mega-duty, three-hole punch powers through up to 80 sheets of 20 lb • bond paper • Spring-assisted mechanism and oversized handle allow easy punching of large stacks • Punch is preset to punch 9/32 diameter holes to fit a standard three-ring binder • Handle locks down for storage and safety • Flip-up guards on each punch head ensure safe use and assists in alignment • Hole punch features an adjustable ruled paper guide, large-capacity paper chip pan and nonskid feet to keep it in place while punching • Heavy-gauge steel punch weighs 7 lb