#11 Step Drill Bit - Milwaukee Electric Tools

The Milwaukee 48-89-9211 #11 Step Drill Bit is engineered for professional technicians and mechanics who require consistent, precise holes in various thin materials. This versatile tool significantly reduces the need for frequent bit changes, enhancing efficiency across electrical, HVAC, fabrication, and automotive applications. Its robust design ensures reliable performance and superior hole quality, making it an indispensable addition to any professional toolkit.

Key Features

• Multi-Step Design: Offers 13 hole sizes, ranging from 7/8" to 1-7/32" (22.2mm to 31mm), to minimize bit changes and optimize setup time.
• JAM-FREE Performance: The dual-flute design provides greater speed and control, preventing jamming for smooth operation, especially with cordless drills in high speed.
• Rapid Strike™ Tip: Enables faster, more accurate starts that generate less heat, contributing to extended tip life.
• Black Oxide Coating: Enhances durability, prolongs bit life, and improves hole quality for consistent results.
• 3-Flat Secure-Grip™ Shank: Provides a solid connection with the drill chuck, minimizing slippage during heavy-duty use.

Applications

This #11 step drill bit is ideal for drilling panel openings for conduit and wiring, mounting switches, relays, and junction boxes in electrical work. HVAC professionals will find it excellent for accurately sizing holes in plenums and ductwork. In automotive and diesel shops, it proves particularly useful for sheet-metal brackets, firewall pass-throughs, accessory mounting, and cleaning up factory knockouts. The #11 step profile also accommodates import vehicle applications where a specific "tool injector drill bit import 11mm" or a precise "drill 11" size is needed for clips, harness routing, or sensor leads, provided material thickness is within typical step drill ranges. Professionals seeking to add new Milwaukee drill bits to their collection will find this model a valuable asset.

Specifications

• Model: 48-89-9211
• Manufacturer: Milwaukee Electric Tools
• Type: #11 Step Drill Bit
• Hole Diameter Range: 7/8" to 1-7/32" (13 steps)
• Shank Size: 3/8"
• Coating: Black Oxide
• Cutter Geometry: Dual-Flute
• Applications: Metal, Plastic