Handle Type:-Reduced Shank Drill Bit-The reduced shank design allows the drill bit to fit into a smaller chuck, expanding its usability.-This reduced design enables compatibility with various drilling machines, particularly portable electric drills and hand-held drills. If the drill works with hard materials, use a high-power drill or special equipment such as a drill press-Reduced Shank Drill Bit can drill a variety of materials, including stainless steel, carbon steel after heat treatment, iron, aluminum alloy, copper, wood, plastic, etc.
eBay