Dottie 615 - 15/16'' x 6'' Ship Auger Bit is made of S45C Grade Carbon Steel with a polished finish. It features aggressive screw pitch, wide flutes for chip removal, hardened cutting edge, and fortified cutting lip. This short style bit has a self-feeding drill point, impact quick change shank, and is suitable for use with power tools. It has an overall length of 6'' and a bit diameter of 15/16'', with a 4'' flute length. This bit has a shank size of 7/16'' and two recesses for extensions. It operates at 600 RPM and can be re-sharpened for extended life. Ideal for boring holes in clean or nail-embedded lumber.