50% Less Effort Needed: If you have to punch large stacks of paper everyday, especially when you suffer from arthritis, you need a labor-saving hole punch. AFMAT 3 hole punch, with the optimized labor-saving lever structure (the effort arm is much longer than the load arm), can get the job done with minimum hand pressure, which is 50% LESS than the regular paper puncher you used to struggle with. Punch 40 Sheets of 20lb Paper: This heavy duty 3 hole punch can punch through 40 sheets of 20lb (75gsm) paper at ease and leavs no hanging "chads", which saves time and boosts your work efficiency. The whole operation is absolutely effortless, silent, and instantly done, and the holes punched out are always precise and clean. Metal 3 Hole Punch Heavy Duty: This 3 hole puncher for binder, is made of sturdy metal construction and 3 robust sharp puncher pins. This 3 ring hole puncher is so heavy-duty and powerful, that it can be used for years even decades to come. The puncher pins are tested to be still sharp after 10000 times of uses. A must have for classroom, office, studio, etc. Metal Paper Guide for Paper Alignment: Simply load sheets there, hands down and holes coming out are consistently aligned due to the adjustable paper guide that adapts to different paper length. This bulit-in paper guide gives paper the same location of holes each and every time. 3 Hole Puncher W/ Large Chip Tray: To make hole punching hassle-free, a hole punch should be labor-saving, jam-free, capable of punching more at a time, easy to empty and also rarely need to empty so as to allow you to focus on punching instead of frequent dumping, that's the way this large hole punch works. This heavy duty 3 hole punch can punch 40 sheets at a time, and it is still sharp after 10000 times of punching.