General tools has grown to become the recognized industry leader for specialty hand tools and instruments. The General tools revolving punch pliers are convenient spring-tension, self-opening pliers for punching round holes in leather, plastic, rubber, canvas and cardboard. There are 6 punches ranging in size from 5/64 inch to 3/16 inch punch sizes 5/64 inch, 3/32 inch, 7/64 inch, 1/8 inch, 5/32 inch, 3/16 inch (2 mm, 2-1/2 mm, 3 mm, 3-1/2 mm, 4 mm, 4-1/2 mm).