Bosch CO14B Twist Drill Bit Set, 14-Piece, Cobalt

Bosch cobalt M42 metal drill bits are engineered with upgraded M42 alloy, containing 8% cobalt. These hard-core cobalt bits deliver 10X life vs standard bits, are jobber length and withstand high-heat applications. The thick web-helix design delivers fast material removal and increased stability. Bits that are 1/8 in and larger feature a split point, bits 3/16 in and larger feature a three-flat shank, for better bit grip. These cobalt drill bits provide great performance in stainless steel and can be used to drill cast iron, titanium and other hard or abrasive metals.

Made of cobalt, with includes (1) 1/16 in Drill Bit (1) 5/64 in Drill Bit (1) 3/32 in Drill Bit (1) 7/64 in Drill Bit (2) 1/8 in Drill Bits (1) 9/64 in Drill Bit (1) 5/32 in Drill Bit (1) 3/16 in Drill Bit (1) 7/32 in Drill Bit (1) 1/4 in Drill Bit (1) 5/16 in Drill Bit (1) 3/8 in Drill Bit (1) 1/2 in Drill Bit, specifications Plastic Case.

• High heat-resistant bits withstand high-temperature applications for extended periods of time
• Hardened exterior made to provide durability in stainless steel, cast iron, titanium, light-gauge metal and aluminum
• Thick web-helix design provides additional stability in tough applications
• 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
• Cobalt M42 drill bit provides upgraded M42 cobalt jobber length bits designed for durability
• Enhanced M42 alloy material contains 8% cobalt alloy that delivers 10X life against standard bits