Step Drill #3, 1/4 in. - 3/4 in. x 1/16 in.

Milwaukee® JAM-FREE performance step 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 high-speed drills. The Rapid Strike™ tip provides a fast and accurate start that generates less heat, leading to 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-etched markings you can see while drilling. The 3-flat Secure-Grip™ shank ensures a strong connection with the drill chuck. The #3 step bit has 9 hole sizes in 1/16 in. increments ranging from 1/4 in. to 3/4 in. JAM-FREE performance at high speeds with most 18-volt cordless professional drills with lithium-ion battery technology.

• JAM-FREE Performance: Dual-flute design provides greater speed and control
• Up to 2X Faster: Optimized for cordless high-speed drills
• Rapid Strike™ Tip: Provides fast and accurate starts and generates less heat
• Up to 4X Longer Bit Life: Optimized geometry with black oxide coating for faster cutting and less heat buildup
• Up to 50% More Holes Per Battery Charge for more productivity
• Laser-Etched Reference Marks easily stop on any hole size
• 3-Flat Secure-Grip Shanks reduce bit slipping in the chuck
• Made in the USA

• Height 19.1 mm 
• Width 149.4 mm 
• Length 149.4 mm 
• Weight 88.5 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
• Steps 9
• Overall Bit Length 6 po
• Number of Holes 6
• Drilling Depth (in) 6
• Shank Style 3-Flat
• Shank Diameter 3/8 po
• Bit Diameter 3/4 po
• Style 3 Flats Shank
• Bit Length 3
• Number of Flutes 2
• Step Thickness 1/8 po
• Drill Bit Size 1/4 po, 5/16 po, 3/8 po, 7/16 po, 1/2 po, 9/16 po, 5/8 po, 11/16 po, 3/4 po
• Size Range 1/4 po to 3/4 po
• Flute Length (in) 0.5
• Shank Diameter Inches 0.375