Milwaukee 21-Piece Black Oxide Step Drill Bit and Cobalt Twist Drill Bit Set

This comprehensive 21-piece set features Milwaukee's JAM-FREE dual-flute step bits for faster drilling and longer life. Includes high-performance RED HELIX Cobalt twist bits engineered for extreme durability in hard metal applications.

• Includes 15-Piece Cobalt Red Helix Drill Bit Set for extreme durability in hard metal, PVC, and wood applications.
• Includes 6-Piece Black Oxide Step Drill Bit Set optimized for cordless drills with JAM-FREE performance.
• Cobalt alloy construction provides up to 15X longer life compared to standard Black Oxide bits.
• Dual-flute design delivers up to 2X faster hole times and up to 50% more holes per battery charge.
• Variable Helix design with a 135° split point tip prevents walking and ensures rapid material extraction.
• Rapid Strike tips allow for fast, accurate starts while generating less heat to extend bit life.
• 3-Flat Secure-Grip shank ensures a solid, non-slip connection within the drill chuck.
• Laser-engraved reference marks allow for easy visibility of hole sizes while drilling.
• Enhanced Tapered Web strengthens the bit core to increase overall flute durability.