Step Drill Bits

Dual-Flute Design and optimized with black oxide coating for producing less heat..

Designed with a black oxide coating, dual-flute cutter geometry, and up to 4x longer bit life the Milwaukee 48-89-9224 6-Piece Black Oxide Step Drill Bits with JAM-FREE Performance are Ideal for drilling small and large-diameter holes in steel and plastic. Each black oxide step drill bit is exclusively optimized for all types of cordless or corded drills in high speed. The Rapid Strike tip allows for improved accuracy, less heat, which results in a longer bit tip life. The black oxide coating enhances bit durability and hole quality.

Included with (1) Milwaukee 48-89-9201 #1 Step Drill Bit, 1/8" - 1/2" by 1/32", (1) Milwaukee 48-89-9204 #4 Step Drill Bit, 3/16" - 7/8" by 1/16", (1) Milwaukee 48-89-9206 #6 Step Drill Bit, 3/8" & 1/2" by 1/16", (1) Milwaukee 48-89-9207 #7 Step Drill Bit, 7/8" Single Hole, (1) Milwaukee 48-89-9208 #8 Step Drill Bit, 1/2" - 1" by 1/16", (1) Milwaukee 48-89-9209 #9 Step Drill Bit, 7/8" & 1-1/8", and Carrying Case.

Made for plastic and metal drilling the made in the USA Milwaukee black oxide step drill bits are laser-engraved with reference marks and the 3-flat patented Secure-Grip shank provides the user with a solid and safe connection with the drill chuck. The step drill bits are designed for electricians, plumbers, and contractors.