Irwin 1/2 In. Cobalt Pilot Point Drill Bit RevWood Select Can be used on aluminum

Can be used on aluminum

Quick installation in less than 5 minutes time

Use with the 2XLarge

Special double reinforced fiberglass provides increased durability and long life in most applications

Height: 1-1/8"

Irwin 1/2 In. Cobalt Pilot Point Drill Bit RevWood Select Can be used on aluminumIndustrial M42 grade steel with 8% cobalt for drilling in stainless steel, abrasive metals, and other hard to drill alloys. Pilot point, 135 deg (degree) split point design penetrates immediately and prevents walking. Parabolic flute design for improved heat dissipation and increased life. No spin shank eliminates bit slippage. Jobbers length. Sizes 7 16" and 1 2" have a 3 8" reduced shank.