Made of the highest quality cobalt and coated with titanium for longer life. All drills have straight shanks and are finished to drill quickly and cleanly.
Benefits:
• 15 to 1 lifetime over High Speed Steel twist drills.
• 5 to 1 lifetime over standard cobalt twist drills.
• More heat resistant than HSS and less brittle than carbide.
• Work great on rough & uneven surfaces.
Drill Set, 10 tubes of 5 ea. Set includes: 50, 53, 56, 57, 60, 64, 67, 70, 72, and 76
