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Cast Iron & Stainless Steel
135 Degree Split Point To Minimize Walk
turned end ferrules
longer lasting teethBi-metal construction for toughness and long life
The undercut tongue and grrove design prevents slippage and the laser heat treated
Irwin 9/16 In. Black Oxide Silver & Deming Drill Bit Deacero Cast Iron & Stainless Steel135 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.
