Anyone that works with lightweight leather will want to add this unique tool to their workshop. This stainless steel punch is pure quality. So easy to use and it feels so good in your hand. Punches clean holes every time in five different sizes in the thinnest of leathers. Approximate holes sizes: 1mm, 1.25mm, 1.5mm, 2mm, 2.5mm. Punched hole size will vary slightly depending on type and weight of leather. Recommended for leather thickness of 1/2 oz. to 5 oz.