Milwaukee 48-89-2719 Black Oxide Jobber Drill Bit 6 in

Product Description

The MILWAUKEE 48-89-2719 is a black oxide jobber-length drill bit engineered for high-cycle drilling in metal, wood, and general construction materials. Built on the Thunderbolt platform, the bit features a thicker-than-standard web core that resists side-load breakage during aggressive drilling. A parabolic flute geometry evacuates chips and debris quickly, reducing heat buildup and extending bit life. The 135-degree split-point tip engages the workpiece on contact with no center punch required. Licensed trade users and general contractors rely on this bit for portable drill applications where accuracy and durability are the priority.

This drill bit is suited for residential and commercial jobsite use across carpentry, electrical rough-in, plumbing, and general fabrication tasks. The reduced-diameter shank allows compatibility with standard 3/8-inch drill chucks, making it practical for use with compact and mid-size portable drills. Its geometry is particularly effective on curved or irregular surfaces where a standard split-point tip would walk. The black oxide coating adds lubricity and corrosion resistance for storage and repeated use in varying site conditions.

Key Features

• Thicker web core provides greater resistance to side-load breakage compared to standard jobber bits
• 135-degree split-point tip starts on contact to prevent walking without a center punch
• Parabolic flute form clears chips and debris rapidly to reduce heat and extend bit life
• 3-flat Secure-Grip shank locks firmly in the drill chuck to reduce slipping under torque
• Reduced shank diameter fits standard 3/8-inch drill chucks
• Black oxide coating resists corrosion and provides surface lubricity

Compatibility

Designed for use with standard 3/8-inch keyed and keyless drill chucks on portable corded and cordless drills. The reduced shank accepts most mid-size portable drill models commonly used on commercial and residential jobsites.

Installation Notes

Installation and use of this bit should follow standard drilling safety practices. Secure the workpiece before drilling and confirm the bit is fully seated and chuck is tightened before operation. When drilling on curved or slick surfaces, the split-point tip eliminates the need for a center punch, but maintaining steady perpendicular pressure improves hole accuracy. Inspect the bit for wear or tip damage before each use and replace when the cutting edges show signs of dulling.

Technical Specifications

• Overall Length: 6 inches
• Point Angle: 135 degrees split point
• Flute Type: Parabolic
• Shank Type: 3-flat Secure-Grip reduced shank
• Chuck Compatibility: 3/8-inch chuck
• Coating: Black oxide
• Weight: 0.04 pounds
• Unit of Measure: Each

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 48-89-2719