Description of Drill Reaming Auger High Carbon Woodworking
【Four-blade Design】This Groove 6X drill bits set, featuring a 'Four-blade' design, allows for faster chip ejection and its full screw tip ensures ease of use and pull through. 【1/4 Hex Square Handle (6.35mm)】Not easy to slip, suitable for all kinds of electric drill. 【Self-tapping Drill Tip】Accurate positioning for a variety of soft and hard wood drilling. 【Preferred Material】Wear and durable. The cutter head is made of 45 high carbon steel, which is quenched at high temperature and has a long service life. 【45 # Steel Drill Body + Tungsten Steel Tooth Edge】6PCS - 14, 16, 18, 20, 22, 25 mm.