Bits drill through nails, wood, vinyl, plastics, and heavy timber.
~ Special bit steel with machine-ground flutes and polished edges for smooth, wobble-free boring.
~ Feed-screw pilot draws bit into wood.
~ Full length is heat-treated and tempered.
~ Deep, open-throat design clears chips for faster, cleaner cuts.
~ Shanks are 7/16" hex to fit 1/2" 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, and for electrical work.
