Engineered for extreme durability, these Milwaukee Cobalt drill bits provide up to 15x longer life than black oxide bits in hard metal applications. The Variable Helix design and QuadEdge Tip work together to decrease heat buildup and ensure rapid material extraction for faster, more accurate drilling.

• Cobalt alloy construction provides up to 15x longer life compared to black oxide drill bits.
• QuadEdge Tip design reduces heat buildup to allow for faster drilling speeds.
• Variable Helix design with an aggressive 35° angle ensures rapid material extraction.
• 135° split point tip delivers a precision start and prevents walking during use.
• Enhanced Tapered Web strengthens the bit's core to increase flute durability.
• 3-Flat Secure-Grip shank helps keep the bit firmly fixed within the chuck.
• Versatile performance across hard metals, PVC, and wood applications.
• Comprehensive 29-piece set includes sizes ranging from 1/16 in. to 1/2 in.