Klein Tools Step Drill Bit #3 - Double-Fluted (99110)

Two flutes cut faster and keep bit cooler. Fast-starting, non-walking drill tip. High-visibility silver targets for primary hole sizes. Thick 3/8" hex shank wont round out in the drill chuck for a more positive grip. 9 hole sizes. Klein Tools drills, drill bits, bit sets, and accessories - durable and reliable.