Cobalt Steel Drill Bit, .5-In. Various 40 degrees

40 degrees

The next generation of IRWIN Folding Utility Knives with patented BladeLock Technology are engineered to keep the utility blade securely locked in the knife handle

reduced shank

high performance carbide tipped blades deliver an unmatched 50 times longer cutting life than bi-metal blades in nail-embedded wood

Grooved hex shank prevents slipping in drill chuck or bit extension

Cobalt Steel Drill Bit, .5-In. Various 40 degrees135 degree split point to minimize walk. Cobalt for higher heat & abrasion resistance. Heavy duty web construction for strength & durability. For tough metal drilling, including heavy duty abrasive, alloy metal drilling on hardened steel.