High speed steel cutting edge for superior durability in nail-embedded wood. High speed steel screw tip increases wear resistance for extended life. Unique parabolic screw tip pulls the bit through material quickly and effortlessly. Resharpenable with Lenox Diamond File (product no. 25312DIAF1)
16-Piece Bi-metal Self-feed Bit Kit Includes:
1-1/8", 1-1/2", 1-3/4", 2-1/8", 2-9/16"1-1/4", 1-3/8", 1-1/2", 1-3/4", 2-1/8, 2-9/16"
5-1/2" Extension
Five lead screws
Hex Wrench Set
