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

• Cobalt alloy construction delivers up to 15x longer life compared to black oxide drill bits
• QUADEDGE TIP technology decreases heat buildup to enable faster drilling speeds
• Variable Helix design with an aggressive 35° angle ensures rapid material extraction
• 135° split point tip provides 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 securely within the chuck
• Versatile application for hard metals, stainless steel, aluminum, cast iron, PVC, and wood