• Constructed of M-42 8 percent cobalt high speed steel for super abrasive resistance in tough metals
• Cobalt steel extends cutting edge life and maintains cutting life after resharpening
• Extra hard drill for greater wear
• 135° split point tip starts on contact, cuts with less force
• Rubber overmolded case protects kit if dropped
• Tap & Drill selection chart for convenient reference.
• Automatic indexing for easy bit access and identification
• Removable cartridges: easy to carry bits from case to worksite
• Sizes include 1/16" to 1/2" in 1/64" increments