The 4 hole in 1 punch tool makes four 3/32" holes quickly and evenly in up to 3 to 4 oz thick leather which is great for making round lacing holes for wallets and other leather craft projects. Use hole punch tool with a Poundo Board or Poly Cutting Board or piece of scrap leather underneath your leather project as a cutting pad. Doing so will make the hole punch tubes last longer and also protect your work table.