Spiral wood drill bit designed for professional use Useful for drilling in soft and hard wood, plywood, and particleboard, carpentry and wood fiberboard. • made of high-quality HSS 4241 steel• ground• centering blade ensures precise guidance of the drill bit• spiral design allows for rapid removal of spoil during operation, which reduces drag and increases drilling speed• made from a single piece of HSS 4241 steel, making them strong and durable• 1/4" (6. 3 mm) HEX chuck
