Milwaukee 48-89-9223 Milwaukee 4pc Set (#1, #4, #7, #12)

Includes:

(1) #1 Step Drill Bit, 1/8"-1/2" by 1/32"
(1) #4 Step Drill Bit, 3/16"-7/8" by 1/16"
(1) #7 Step Drill Bit, 7/8" Single Hole
(1) #12 Step Drill Bit, 7/8"-1-3/8"
(1) Carrying Case
Features
JAM-FREE Performance: Dual-flute design provides greater speed and control
Up to 2X faster: Optimized for cordess drills in high speed
Rapid Strike Tip: Creates fast, accurate starts and generates less heat
Up to 4X longer bit life: Optimized geometry with Black Oxide coating to cut faster and produce less heat
Up to 50% more holes per battery charge: Greater user productivity
Laser-engraved reference marks: Easily stop on any hole size
3-Flat Secure-Grip shanks: Reduces bit slippage in the chuck
Made in the USA
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 3-flat Secure-Grip shank ensures a solid connection with the drill chuck. The Step Drill Bit 4-Piece Set includes bits #1 (48-89-9201), #4 (48-89-9204), #7 (48-89-9207) and #12 (48-89-9212). Jam-Free Performance in high speed with most professional 18 volt cordless drills with lithium-ion battery technology. - See more at: http://www.milwaukeetool.com/accessories/drilling/48-89-9223#sthash.GHPpbYmx.dpuf