Wood Auger Bit

For heavy-duty,precision drilling in soft and hard wood,large section beams,joints,floor boarding,chipboard and plywood.Lewis flute design for rapid chip removal. Process Shank Flute Surface Milded Round Hex 1/4?? Hex quick change SDS Welded single double B&W Tin-coated Machine Use ?? ?? ?? ?? ?? ?? ?? ?? Hand use ?? ?? ?? ?? ??