QLOUNI 5 Piece Hexagonal Auger Bit 230mm Wood Drill Bit Set Carbon Steel Spiral Hole Cutter Woodworking Tool Kit with Diameter 6mm/8mm/10mm/12mm/14mm

QLOUNI 230 mm Hexagon Shank Standard Auger Drill Bit Set Long Ship Wood Hole Cutter Drilling Tool for Woodworking What kind of drill is this? It consists of a head, a drill body and a drill stem. The head comprises a head outer circle, a sinker cutting edge, a main cutting edge and a screw tip. The diameter of the head outer circle is slightly larger than the diameter of the drill body and the ...