Milwaukee 48-89-2772 Black Oxide Aircraft Drill Bit 12 in

Product Description

The MILWAUKEE 48-89-2772 is a black oxide aircraft-length drill bit designed for extra reach and deep drilling in metal, wood, and PVC. At 12 inches in overall length, it gives technicians and tradespeople the extended reach needed in confined or deep-access drilling situations. The 135-degree split point tip starts on contact for accurate hole placement without walking. A three-flat shank design locks the bit securely in the drill chuck, preventing rotation slip during high-torque drilling. The black oxide coating reduces friction and resists corrosion for extended service life.

This aircraft-length drill bit is suited for construction, mechanical, and electrical trades where standard-length bits cannot reach fastener locations or conduit knock-outs. The reduced shank diameter allows use in 3/8-inch drill chucks, making it compatible with a wide range of cordless and corded drills. Typical applications include drilling through deep structural members, electrical boxes, HVAC cabinet panels, and plumbing rough-in work where deep or angled hole placement is required.

Key Features

• 135-degree split point tip starts on contact and prevents walking for accurate hole placement
• Three-flat shank holds securely in the drill chuck to prevent slipping under torque
• Black oxide coating provides lubricity and corrosion resistance for longer bit life
• THUNDERBOLT web construction delivers longer service life and faster drilling
• Reduced shank diameter fits standard 3/8-inch drill chucks
• 12-inch aircraft length provides extra reach for deep or hard-to-access drilling locations

Compatibility

Designed for use in 3/8-inch and larger drill chucks on standard corded and cordless drills. Suitable for drilling metal, wood, and PVC in trade and construction applications requiring extended bit reach.

Installation Notes

This bit is installed and removed by a licensed or qualified tradesperson using a standard drill chuck key or keyless chuck. Ensure the drill is powered off and the battery removed or the tool unplugged before changing bits. Secure the three-flat shank fully in the chuck jaws before beginning any drilling operation. Do not use this bit at speeds or feed rates beyond the tool manufacturer recommendations for the material being drilled.

Technical Specifications

• Length: 12 inches
• Point Type: 135-Degree Split Point
• Shank Type: Three-Flat (Secure-Grip)
• End Configuration: Single End
• Coating: Black Oxide
• Compatible Materials: Metal, Wood, PVC
• Minimum Chuck Size: 3/8 inches
• Weight: 0.18 pounds
• UOM: Each

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 48-89-2772