Engineered for extreme durability, these Milwaukee Cobalt drill bits offer up to 15x the life of 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.

• Cobalt alloy construction provides up to 15x longer life compared to black oxide drill bits
• QUADEDGE TIP technology decreases heat buildup 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
• Enhanced Tapered Web strengthens the bit's core to increase flute durability
• 3-Flat Secure-Grip design helps keep the bit fixed within the chuck
• Versatile application for hard metals, stainless steel, cast iron, aluminum, PVC, and wood