Klein Power Ship Auger Bits are extra tough for deep, fast, heavy-duty power boring. Design includes a feed-screw pilot for easy, accurate starting, properly-angled helical pitch to clear chips without clogging and precision-angled chisel surfaces for a smooth, straight, true bore and easy removal from hole. Heat-treated and tempered along their full length, these tough auger bits stay sharp, resist wear longer and go right through nails without damage to the bit or distortion of the hole.