Carpentry 5PC Long Wood Auger Drill Bit Set 100MM X Long Wood Bits 5 6 8 10 12mm
Shank: 1/4"(6.35mm) Hex Quick Change Shank. Easy to install, easy to use, only need to be installed in the ordinary hand drill can be used. Can be used for a variety of wood, wood products, plastics, plywood and other materials openings.