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. 4 oz.