We are happy to once again offer this outstanding set to you. These bits are super sharp, will last longer and cut cleaner holes - and do it fast! Can be used on a wide variety of materials. 1/8 inch shank. Comes in a plastic storage case. Inch Bit Set includes: 1/64, #75 (.021 inch), 1/32, #61 (.039 inch), 3/64, 1/16, 5/64, 3/32, 7/64 and 1/8.