Draper 83961 (DAT-RAD10K)

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 provi more→des a firm, positive grip and won't spin out in the drill.

Diablo's Multi-Material Carbide Tipped Hammer Drill Bit range provides faster starts and longer life in tile, masonry, concrete, wood and metal. Optimized with a unique brazing and hardening process, more→the carbide tip extends life and productivity, allowing users to drill faster holes. The multi-ground Grip Point tip design allows for aggressive starts that produce clean, fast holes in a variety of applications. This range is Impact Strong for increased shank stability and durability in cordless and corded impact and drill drivers.

For rotary drilling only. Includes 5/32 pilot bit which must be used first. Ideal for drilling porcelain tiles up to a scratch hardness of 8. The drill bit will not walk, tape or center punching is no more→longer needed. Flat bottom parabolic flute ensures fast and efficient removal of drill dust and prevents clogging. Cuts nice, clean holes with very little or no chipping; operate drill motor 400-600 RPM