Revolutionary flexibility and ease-of-use in a heavy-duty stapler. Staples from 20 to 120 sheets with one staple size and 50% less stapling effort than traditional heavy-duty staplers. Easy jam-clearing knob. Versatile adjustment guide for precision alignments. Exceptionally durable metal construction with soft touch accents. Throat depth adjusts to 2 3/4". One-button front-loading cartridge for a full strip (100) of 5/8" heavy-duty staples. Package includes 500 staples.