Milwaukee 48-89-2714 Thunderbolt Black Oxide Drill Bit 6 in

Product Description

The MILWAUKEE 48-89-2714 is a Thunderbolt black oxide jobber length drill bit built for extreme durability and long service life on the job site. The thicker-web construction provides greater core strength and resists side-load breakage that shortens standard bit life. A parabolic flute form evacuates chips and debris rapidly, keeping the cutting edge cooler during extended use. The 135-degree split point tip starts on contact without walking, which is critical when drilling on curved or irregular surfaces. Licensed electricians, HVAC techs, plumbers, and general tradespeople use this bit with portable drills for fast, accurate hole-making.

This drill bit is suited for residential and light commercial trade applications where reliable, repeatable drilling performance is required. The reduced shank diameter allows use in 3/8-inch chucks, expanding compatibility across a wide range of portable drills commonly found on trade job sites. The 3-flat Secure-Grip shank seats firmly in the chuck and minimizes slipping under load. The black oxide coating adds lubricity and corrosion resistance, extending bit life when working in varied environments including damp or outdoor conditions typical of HVAC, plumbing, and electrical rough-in work.

Key Features

• Thicker web core provides greater strength and resistance to side-load breakage compared to standard jobber bits
• 135-degree split point tip starts on contact and prevents walking, especially useful on curved surfaces
• Parabolic flute clears chips and debris quickly to reduce heat buildup during drilling
• 3-flat Secure-Grip shank holds firmly in the chuck to reduce slipping under torque
• Reduced shank diameter compatible with 3/8-inch chucks for use with a wide range of portable drills
• Black oxide coating provides lubricity and corrosion resistance for extended bit life

Compatibility

Designed for use with portable drills equipped with 3/8-inch or larger chucks. Suitable as a general-purpose jobber length drill bit for metalworking, wood, and common trade substrates encountered in HVAC, plumbing, and electrical installation work.

Installation Notes

Install the bit fully into the drill chuck and tighten all flats of the 3-flat shank to minimize slipping under load. Disconnect or de-energize any powered equipment or energized panels before drilling into walls, ceilings, or mechanical assemblies. Apply consistent, moderate feed pressure and allow the parabolic flute to clear chips naturally rather than forcing the bit through the material. Comply with applicable OSHA and site safety requirements when operating portable drills in trade environments.

Technical Specifications

• Overall Length: 6 inches
• Package Length: 5.75 inches
• Package Width: 1.88 inches
• Package Height: 0.13 inches
• Weight: 0.03 pounds
• Point Angle: 135 degrees
• Coating: Black Oxide
• Flute Type: Parabolic
• Shank Type: 3-Flat Secure-Grip, Reduced Diameter
• Chuck Compatibility: 3/8 inch and larger
• Unit of Measure: Each

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 48-89-2714