48-89-9212 Step Drill Bit, 7/8 To 1-3/8 In, 1/4 In Hex Shank

The Milwaukee 48-89-9212 step drill bit delivers clean, precise holes in sheet metal, plastics, and thin steel with a single tool. Instead of switching between multiple drill bits, this stepped design provides two hole diameters—7/8 inch and 1-3/8 inch—in one piece, saving time and reducing clutter on your tool belt. The single cutting edge gives you superior control and finish quality compared to traditional multi-flute designs, making it ideal for professional tradspeople and serious DIYers who demand reliable results.

The black oxide finish resists corrosion and works effectively with drilling lubricants, while the high-speed steel construction handles demanding applications without sacrificing durability. The speed-start tip prevents bit walking and enables faster penetration into metal, and laser-etched markings eliminate guesswork about hole sizes. The 1/4 inch hex shank fits securely in impact drivers and drill chucks, ensuring fast bit changes and a stable grip that transfers maximum torque for efficient drilling.

Features and Benefits

• Single cutting edge design: Provides superior control and cleaner finish than multi-flute bits, reducing post-drilling cleanup.
• Dual hole sizes in one bit: Drills 7/8 inch and 1-3/8 inch diameter holes without changing tools, boosting productivity on every job.
• Black oxide finish: Resists corrosion, extends tool life, and maintains excellent compatibility with drilling lubricants.
• Speed-start tip: Reduces bit walking and allows faster penetration for smoother, more efficient drilling operations.
• Laser-etched markings: Clear hole size indicators take the guesswork out of your drilling work.
• 1/4 inch hex shank: Compatible with impact drivers and standard drill chucks for fast bit changes and secure grip.

Specifications

• Brand: Milwaukee
• Model: 48-89-9212
• Hole diameter range: 7/8 to 1-3/8 inches
• Shank diameter: 1/4 inch hex
• Overall length: 3-1/16 inches
• Material: High-speed steel
• Finish: Black oxide
• Flute design: Straight flute, 2-flute