Milwaukee Black Oxide Step Drill Bit Set 48-89-9239

SUPERIOR HOLE GEOMETRY DOMINANCE

When your crew is punching through stainless or aluminum on the jobsite, bit walking and oblong holes are productivity killers. This Milwaukee Step Drill Bit configuration is engineered with a single cutting edge design to deliver dead-center accuracy and a cleaner finish than standard dual-flute competitors. Built from premium high-speed steel with a black oxide coating, these bits are designed to withstand high-heat applications and provide a significant ROI by extending the service life of your consumable fleet. The specialized speed start tip ensures immediate penetration, while the hybrid shank design offers both impact-rated efficiency and traditional chuck security.

• / Single Cutting Edge provides true round holes every time for professional-grade fitments and cleaner finishes.
• / Speed Start Tip reduces bit walking and allows for rapid penetration without the need for a center punch.
• / High Speed Steel construction maintains edge hardness even in rigorous stainless steel and brass applications.
• / Laser Etched Markings offer permanent visibility of hole sizes for fast, mistake-free identification on the fly.
• / Dual Shank Configuration features 1/4 inch hex for impact drivers and 3-flat shanks for maximum chuck grip.

WHAT'S IN THE BOX