Diablo, 138 x 712 auger bit Diablo’s auger bit range provides maximum performance, extreme durability and superior life in nailembedded wood applications The selffeeding duratip 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 Delivers increased stability and durability in cordless and corded impact and drill drivers