The Milwaukee wood auger bits are ideal for drilling soft and hard woods, large section beams, joists, floor boarding, chipboard and plywood. It has a lewis flute design for high speed chip removal. Hexagon shank for a secure fit and grip into a chuck. Various sizes available. 230mm total length, working length 155mm. Hexagon shank. Suitable for drilling soft and hard woods, large section beams, joists, floor boarding, chipboard and plywood. Lewis flute design for high speed chip removal. Various sizes available.