


Milwaukee Step Drill Bit Cordless Optimized 48-89-9399
MAXIMIZED HOLE PRODUCTION EFFICIENCY
In high-volume metal fabrication and field installs, the bottleneck is often the consumable rather than the power tool itself. The Milwaukee 48-89-9399 Step Drill Bit is engineered to eliminate that friction, specifically optimized for the high-RPM output of modern cordless platforms to ensure your fleet spends more time drilling and less time swapping bits. By refining the geometry of the dual-flute design, Milwaukee has achieved a mechanical balance that provides up to 50% more holes per battery charge, directly impacting your bottom-line productivity.
- / JAM-FREE PERFORMANCE: Dual-flute geometry delivers superior chip evacuation and control, preventing the binding that destroys bits and stalls production in high-speed applications.
- / RAPID STRIKE TIP: Provides aggressive, pinpoint starts without walking, significantly reducing heat buildup at the most critical stage of the cut for 4x longer bit life.
- / 3-FLAT SECURE-GRIP SHANK: Eliminates bit slippage within the chuck, ensuring 100% of the drill's torque is transferred directly to the workpiece.
- / BLACK OXIDE COATING: High-grade surface treatment enhances durability and hole quality while resisting thermal degradation during heavy-duty use.
TECHNICAL SPECIFICATIONS
WHAT'S IN THE BOX
(1) Milwaukee Step Drill Bit (48-89-9399)
Original: $214.97
-65%$214.97
$75.24Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
MAXIMIZED HOLE PRODUCTION EFFICIENCY
In high-volume metal fabrication and field installs, the bottleneck is often the consumable rather than the power tool itself. The Milwaukee 48-89-9399 Step Drill Bit is engineered to eliminate that friction, specifically optimized for the high-RPM output of modern cordless platforms to ensure your fleet spends more time drilling and less time swapping bits. By refining the geometry of the dual-flute design, Milwaukee has achieved a mechanical balance that provides up to 50% more holes per battery charge, directly impacting your bottom-line productivity.
- / JAM-FREE PERFORMANCE: Dual-flute geometry delivers superior chip evacuation and control, preventing the binding that destroys bits and stalls production in high-speed applications.
- / RAPID STRIKE TIP: Provides aggressive, pinpoint starts without walking, significantly reducing heat buildup at the most critical stage of the cut for 4x longer bit life.
- / 3-FLAT SECURE-GRIP SHANK: Eliminates bit slippage within the chuck, ensuring 100% of the drill's torque is transferred directly to the workpiece.
- / BLACK OXIDE COATING: High-grade surface treatment enhances durability and hole quality while resisting thermal degradation during heavy-duty use.
TECHNICAL SPECIFICATIONS
WHAT'S IN THE BOX
(1) Milwaukee Step Drill Bit (48-89-9399)













