Drives four staple sizes and staples up to 130 sheets. AntiJam™ mechanism. Antimicrobial finish. Steel with rubber pads. Adjustable paper stop. Throat depth adjusts up to 2 3/8". Rear loading of 1/4", 3/8", 1/2" and 5/8" heavy-duty staples. All sheet capacities are based on 20-lb. bond.