Model Number: WD-001 Key Specifications/Special Features: Wood auger bits hex shank1) Made of high carbon steel with threaded tip.2) Screw threaded centre point for precisely locating the bit and for fast self-starting of the hole.3) Single outer cutting spur for splinter free drilling and clean holes.4) Wide lands keep bit straight as it bores through the hole.5) Full length heat treatment guards against bending bit in heavy-duty applications.6) For precise drilling in soft and hard wood, large section beam, chipboard and plywood.7) European style and American style both availableMetric sizes (mm):Diameters: 6, 8, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 28, 30, 32, 34, 35, 36, 38, 40mmOverall length: 100mm, 125mm, 155mm, 200mm, 230mm, 250mm, 300mm, 400mm, 460mm, 500mm, 600mm, 650mmFractional sizes (inch):Diameters: 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1", 1-1/8", 1-1/4", 1-3/8", 1-1/2"Overall length: 4", 5", 6", 8", 9", 10", 12", 16", 18", 20", 24", 26"