The Shockwave Impact Duty Screwdriver Bit is ideal for heavy duty impact applications. Together with the correct power tool it would be used by a mixture of trade professionals and home DIY users. These drill bits can be used for drilling and fastening applications and are used with impact drivers. They have had a special heat treatment which is designed to absorb impact from the drill. It has a compression forged tip and custom engineered steel body. Supplied as a pack of 2.