Constructed of M-35, 5% Cobalt Alloy steel for super abrasive resistance and faster cutting than M2 in tough metals, the IRWIN Cobalt Alloy Steel Metal Index Drill Bit Set features 135° split point tips that start on contact and cut with less force. Reduced shanks above 3/8-in allow you to use the larger drill bits in a standard 3/8-in chuck. The included case has removable cartridges to carry bits from case to work site safely.
Constructed of M-35 5-percent Cobalt Alloy steel for super abrasive resistance in tough metals
Cobalt Alloy 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 and Drill selection chart for convenient reference
Automatic indexing for easy bit access and identification
Removable cartridges: easy to carry bits from case to work site
Sizes include 1/16-in to 1/2-in, in 1/64-in increments