The Armeg Twister Impact Masonry Drill Bit is a masonry designed that has been specially designed to work with impact drivers. Instead of swapping machines, from your impact driver to your drill and back again, the Armeg Twister masonry bit lets you keep using the impact driver to product the same results. The precision-ground drill bit provides high speed drilling in most masonry materials with an optimised flute design that ensures the maximum removal of debris and chips. The solid, 1-piece drill bit ensures excellent durability as well as incredible strength. The drill bit features a depth-stop section which provides a consistent experience every time you use it. When using against metal or tile, it is advisable to keep you impact driver in a rotary only mode.