Irwin 5/8 In. Black Oxide Silver & Deming Drill Bit 600 The Shockzone is optimized for

The Shockzone is optimized for each tip type and length of driver bit to absorb peak torque and prevent breaking

all purpose electrode used in all positions

1 white silica sand per 100 lb

speed and accurate depth adjustments to deliver clean accurate cuts in a variety of materials and applications

Irwin 5/8 In. Black Oxide Silver & Deming Drill Bit 600 The Shockzone is optimized for135 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.