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Bosch CO2145 9/32 in. x 4-1/4 in. Cobalt Drill Bit 9/32″ x 4-1/4″ 1

Quick facts

  • Brand: Bosch
  • Price: USD 8.69
  • Rating: 4.70 (8058 reviews)

If you need a dependable bit for metalwork, the Bosch CO2145 is built for tough applications. This 9/32 in. cobalt jobber-length drill bit is designed to handle high-temperature drilling for extended periods (up to 1,100°F), helping it stay productive when you’re pushing into harder materials.

Its rigid, thick web design adds stability, while the surface-hardened construction is intended to penetrate abrasive materials more effectively. The split point and 120° cutting angle help with faster starts and reduced wandering—useful when accuracy matters on metal stock.

  • 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 alloy steel, cast iron, stainless steel and titanium

Specs at a glance: 9/32 in. cutting diameter (0.28 in.), 4-1/4 in. length, cobalt material, titanium finish, 3-flat shank, spiral flute with 3 flutes, and a split point.