Milwaukee 48-89-9221 Step Drill Bit Set, Dual Flute, 3-Piece, HSS, Black Oxide

Milwaukee® step drill bits with jam-free performance feature a dual-flute design delivering up to 2X faster hole times, up to 4X longer 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 cordless drills in high-speed. The Rapid Strike™ tip allows for a fast and accurate start that generates less heat, resulting in longer bit tip life. Black oxide coating also enhances durability, hole quality and bit life. For user convenience and accuracy, each bit has laser-engraved reference marks you can see while drilling. The three-flat Secure Grip™ shank ensures a solid connection with the drill chuck. The step drill bit three-piece set includes bits #1 (48-89-9201), #2 (48-89-9202) and #4 (48-89-9204). Jam-free performance in high-speed with most professional 18 V cordless drills with Lithium-ion battery technology.

Made of hss with a black oxide finish, with includes (1) 48-89-9201 1/8 to 1/2 x 1/32 in 1 Step Bit (1) 48-89-9202 3/16 to 1/2 x 1/16 in 2 Step Bit (1) 48-89-9204 3/16 to 7/8 x 1/16 in 4 Step Bit and Carrying Case, type Dual Flute.

• Jam-free performance, dual-flute design provides greater speed and control
• Rapid Strike™ tip creates fast, accurate starts and generates less heat
• Up to 2X faster drilling vs standard masonry drill bits
• Three flat Secure Grip™ shank holds the bit firmly in the drill chuck, thus reducing slippage
• Up to 1 in hex and square nuts capacity
• Optimized thin kerf design for unmatched ease-of-feed, accuracy, lower friction and vibration resulting in more cuts per charge and longer blade life
• Laser-etched scale provides a quick and convenient way to determine fastener size in either SAE or metric