Diablo 1-14 In. X 17-12 In. Auger BitFreud-Diablo DAg3140 Diablo Auger Bit 1-14 X 17-12Features of Diablo 1-14 In. X 17-12 In. Auger Bit Two-step cutting action for precise, clean holes in wood drilling applications Dura-Tip for extreme durability in nail-embedded wood Dual cutting edge design for effortless, smooth hole drilling in nail-embedded..