... or Plastic Hang Bag.Description:1) Made of high carbon steel with threaded tip.2) Solid centre ... Screw threaded centre point for precisely locating the bit and for fast self-starting of the hole.4 ... .6) Full length heat treatment guards against bending bit in heavy-duty applications.7) For precise drilling ... 20, 21, 22, 23, 24, 25, 26, 28, 30, 32, 34, 35, 36, 38, 40mmOverall Length: 100mm, 125mm, 155mm ...