Irwin 11/16 In. Black Oxide Silver & Deming Drill Bit Self-Drilling Sheet Metal Screws Craftmaster (prior to 1991)

Craftmaster (prior to 1991)

5" or INTERMEDIATE SIZE: Size 6

Paintblock instantly activates and creates a micro-barrier

Heavy Duty Web Design Provides Extreme Rigidity When Drilling In Metal Applications

Irwin 11/16 In. Black Oxide Silver & Deming Drill Bit Self-Drilling Sheet Metal Screws Craftmaster (prior to 1991)135 deg. split point for no slip starting on hard materials. Parabolic flute design for improved heat dissipation and increased life. Industrial M7 grade steel for high performance drilling in metal, wood, and plastic. Black oxide coated for longer life and greater resistance to wear. Jobbers length. For drilling through metal, wood, fiberglass, stainless steel.