14-piece Thunderbolt black oxide drill bit set - Milwaukee - 48-89-2800

Milwaukee® Step Drills with Burr-Free Performance feature a double flute design that delivers up to 2x faster drilling times, up to 4x longer tool life and up to 50% more holes per battery charge than competitors. Ideal for drilling small and large diameter holes in steel and plastic, these bits are optimized for high-speed cordless drills. The Rapid Strike™ bit provides fast and accurate starting that generates less heat, which extends the life of the bit. The black oxide coating also improves durability, hole quality and bit life. For user convenience and accuracy, each drill bit has laser-engraved reference marks that you can see while drilling. The 3-flat Secure-Grip™ shank provides a solid connection to the drill chuck. The 3-step drill set includes No. 1 (48-89-9201), No. 2 (48-89-9202) and No. 4 (48-89-9204) drills. High-speed non-blocking performance with most 18-volt professional cordless drills with lithium-ion battery technology.