IRWIN’s SPEEDBOR SUPREME line of premium wood-drilling bits includes 18" ship augers, 7.5" ship augers and self-feed bits. Engineered to make quick, clean holes, even in nail-embedded wood, the bits have a bi-metal construction and high-speed steel cutting edge that maintains sharpness and withstands repeated nail strikes, the company explains.
www.irwin.comDrilling bits