Ship Auger Bit .81 inches bit size x 4 inches twist length features:

• Heat treated and tempered.
• Can drill through nails, wood, vinyl, plastics, and heavy timber.
• Has special bit steel with machine-ground flutes and polished edges for smooth, wobble-free boring.
• Deep, open throat design clears up chips for faster, cleaner cuts.
• Feed-screw pilot draws bit into wood.
• Feed-screw pilot draws bit into wood.
• Shanks are .43" hex to fit .5" and larger three-jaw chucks.
• Head and twist are ground to correct clearance for easy removal from hole.
• For heavy construction and repair work in mines, on docks and bridges.