Milwaukee Step Drill Bit 4MM-20MM

MAXIMUM EFFICIENCY HOLE PRODUCTION

As fleet managers and site supervisors look to maximize the output of their M18 and M12 platforms, the interface between the tool and the material becomes the critical failure point. The Milwaukee 48-89-9320 Step Drill Bit #9 is engineered to eliminate the jamming bottleneck that plagues standard dual-flute bits. By optimizing the flute geometry specifically for high-speed cordless applications, this bit doesn’t just cut through steel and plasticit manages thermal load to protect your battery’s runtime and the bit’s cutting edge. In high-volume production environments, the reduction in bit swaps and the increase in holes per charge represent a tangible boost to your project’s ROI.

• / JAM-FREE Performance: Dual-flute design prevents binding and seizing at high speeds, ensuring seamless transitions between hole sizes.
• / Rapid Strike Tip: Delivers surgical starts without bit-walking, significantly reducing heat build-up at the point of contact.
• / Black Oxide Coating: Engineered for a 4X longer lifespan compared to standard bits by reducing friction and preventing material welding.
• / 3-Flat Secure-Grip Shank: Locks into any 1/2″ chuck to eliminate slippage and maximize torque transfer from the motor to the material.
• / Laser-Engraved Marks: High-contrast reference points provide visual confirmation during active drilling for dead-accurate sizing.

TECHNICAL SPECIFICATIONSModel Number: 48-89-9320
Bit Number: #9
Hole Sizes: 7/8″, 1-1/8″
Number of Steps: 2
Coating: Black Oxide
Shank Diameter: 3-Flat Secure-Grip
Application: Steel, Plastic
Optimization: High-Speed Cordless Drills

WHAT’S IN THE BOX

(1) Step Drill Bit #9 (7/8″ – 1-1/8″) [48-89-9320]