Cobalt Steel Drill Bit, .5-In. Various Portable and lightweight - cordless

Portable and lightweight - cordless design offers the freedom to take it anywhere

diablo's patented variable tooth technology provides faster cuts with less vibration

reduced shank

Grooved hex shank prevents slipping in drill chuck or bit extension

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

Cobalt Steel Drill Bit, .5-In. Various Portable and lightweight - cordless135 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.