Bosch CO4147 - 12 pc. 5/16 In. x 4-1/2 In. Cobalt Drill Bit

Features

• Withstands high-temperature applications for extended periods of time (up to 1,100°F)
• Rigid, thick web design adds stability to bit in tough applications
• Surface hardened to penetrate tough abrasive materials
• Available in jobber length, full shank
• Best used for drilling into light-gauge metal, high-carbon steel, aluminum and ally steel, cast iron, stainless steel and titanium