Century Matte Black Single Cylinder Deadbolt Finish:Bright Chrome even through nail embedded lumber even through nail embedded lumber Dual induction heat treated ensures durability staying sharper longer Heavy duty lead screw designed for quick gripping and penetration power Re sharp enable for extended tool life 7 16 in Nail killing wood boring bit design – adds extreme durability to Bosch speed for nail embedded wood Reinforced reamer cutting edges – make this bit the first wood boring bit to drill through nails Optimized for wood and some wood with nails – combines superior drill speed with engineered nail cutting durability Fully threaded cone tip – pulls the bit through wood quickly and effortlessly Contoured paddle design – increases speed with faster chip removal Hex shank – improves bit grip and allows use with a variety of drill types Premium bit material – combined with innovation for great performance and life ) Adjustable Assembled Width (in ) 1 Deadbolt bore hole diameter (in