The high-speed steel jobber-length drill bits in this set provide a range of sizes so you'll never be without the right bit.  These bits are made to absorb more shock and vibration than cobalt and carbide jobber-length drill bits, making them acceptable to use in both manual drilling machines and handheld power tools. They may leave a rough finish on the hole. This set contains drill bits from 1/16" to 1/2".  29 bits in total.  See picture for all sizes included.