Diablo DAG3090 7/8 in x 17-1/2 in Auger Bit Drilling clean wood and nail-embedded wood. Diablo’s Auger Bit range provides maximum performance, extreme durability and superior life in nail-embedded wood applications. A two-step cutting action creates holes that are precise and clean. The self-feeding Dura-Tip™ pulls the bit while the dual cutting edge delivers an effortless, smooth drilling experience in wood with nails. Deep flutes enhance the chip evacuation process for more holes per charge. Quick change shank increases stability and durability in cordless and corded impact wrenches and drill drivers. 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 wood Deep flutes for fast chip removal 7/16 in. hex quick change shank increases stability and durability in cordless and corded impact wrenches and drill drivers DIAMETER : 7/8 in LENGTH : 17-1/2 in SHANK : Hex 7/16 in WORKING LENGTH : 13-1/2 in