Hole Punch Heavy Duty Black. This heavy duty hole punch is able to punch through up to 63 sheets of 80gsm paper at time. The extended handle makes using the machine effortless. The punch includes an integrated guide to ensure punching is precise and accurate.• Heavy duty 2-hole punch for the easy punching of documents• Can punch up to 63 sheets of 80gsm paper• Guidelines ensure that punching is always precise