Irwin 9/16 In. Black Oxide Silver & Deming Drill Bit Tile Care & Grout Prevents germination of crabgrass and

Prevents germination of crabgrass and other grassy lawn weeds

Packaged in reusable plastic holder

and other applications

1/4' quick change hex shank prevents slipping in drill chucks and bit extensions

solid brass adjustable collar

Irwin 9/16 In. Black Oxide Silver & Deming Drill Bit Tile Care & Grout Prevents germination of crabgrass and135 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.