These Double-Fluted Step Drill Bits provide faster cutting and drilling than single flute bits. The easy-to-read step markings and targets save time when drilling holes. Thick 3/8-Inch hex shank provides a firm, positive grip and won't spin out in the drill.

• Two flutes on this Step Drill Bit cut faster and keep bit cooler
• Fast-starting, non-walking drill tip
• High-visibility silver targets for primary hole sizes
• Thick 3/8-Inch hex shank won't round out in the drill chuck for a more positive grip
• 12 hole sizes