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, 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 ensures 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, Made with heavy-gauge steel, Weighs 7 lb, 4 oz, SKU: SPRCH25243