BOSCH CO21B 21-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

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About This Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits High-heat resistant bits – withstand high-temperature applications for extended periods of time Thick web-helix design – provides additional stability in tough applications.Case Type:Plastic Surface-hardened tip – penetrates tough abrasive materials Split points on bits 1/8 In. and larger – allow for easy starts with no skating, eliminating the need for a center punch Three-flat shank on bits 3/16 In. and larger – deliver better bit grip Overview Material : Cobalt Cutting Diameter : 2 Inches Finish Type : Stainless steel Shank Type : 3-Flat Cutting Angle String : 135 Degrees Show more