IRWIN Cobalt High Speed Steel Drill Bit Set, 15-Bits

Constructed of M-42 8 percent cobalt high speed steel for super abrasive resistance in tough metals

• Durable rubber-sided case for added impact resistance
• Sliding latch design provides added security
• Available with a variety of drill bit types and piece count configurations
• 135-degree split point reduces feed pressure for easier penetration without work hardening