Stepped drill bit #8, 1/2 in. - 1 in. x 1/16 in.

Milwaukee® JAM-FREE performance step drill bits feature a dual-flute design delivering up to 2X faster drilling, 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. The black oxide coating also enhances durability, hole quality, and bit life. For user convenience and accuracy, each bit has laser-engraved markings that you can see while drilling. The 3-flat Secure-Grip™ shank ensures a solid connection with the drill chuck. The #8 step drill bit has 9 hole sizes in 1/16 in. increments ranging from 1/2 in. to 1 in. JAM-FREE performance in high speed with most professional 18-volt cordless drills with lithium-ion battery technology.

• JAM-FREE Performance: Dual-flute design provides greater speed and control
• Up to 2X Faster: Optimized for cordless drills in high speed
• Rapid Strike™ Tip: Allows for fast and 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 for greater productivity
• Laser-engraved markings stop easily on any hole size
• 3-Flat Secure-Grip Shanks reduce bit slipping in the chuck
• Made in the USA

• Height 25.4 mm 
• Width 149.4 mm 
• Length 149.4 mm 
• Weight 145.1 g 

• Product Type Step Drill Bit
• Drill Bit Type Step
• Bit Type Step
• Single / Double Ended Single
• Recommended Safety Equipment Safety Glasses
• Point Rapid Strike Tip
• Impact Rated No
• Set / Individual Individual
• Cutter Geometry Dual Straight Flute
• Number of Holes 9
• Steps 9
• Overall Bit Length 6 po
• Drilling Depth (in) 6
• Shank Style 3-Flat
• Shank Diameter 3/8 po
• Style 3 Flats Shank
• Bit Length 3
• Number of Flutes 2
• Step Thickness 1/8 po
• Drill Bit Size 1/2 po, 9/16 po, 5/8 po, 11/16 po, 3/4 po, 13/16 po, 7/8 po, 15/16 po, 1 po
• Size Range 1/2 po to 1 po
• Bit Diameter 1 po
• Flute Length (in) 0.5
• Shank Diameter Inches 0.25