Nailbiter premium dual-helix construction
Twin cutting edges for fast and smooth drilling, 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
Resharpen for extended tool life
Tempered high-speed steel construction
7/16-In hex shank
Drills through nails, wood, vinyl, plastics and heavy timber
Full black oxide coating prevents rust