1/2" Hollow Punch For Making Clean Holes In Gaskets, Leather, Plastic, Rubber & Vinyl. This is a new 1/2" hollow punch. Great for making clean 1/2" holes in gaskets, leather, plastic, rubber and vinyl. Has a knurled body for a secure grip. It measures approximately 3 15/16" (100.2 mm). We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.