Milwaukee 48-89-2730 Black Oxide Jobber Drill Bit 6 in

Product Description

The MILWAUKEE 48-89-2730 is a black oxide jobber length drill bit built for extreme durability in demanding trade applications. The Thunderbolt web design uses a thicker core than a standard drill bit, providing greater strength and resistance to side-load breakage. A parabolic flute geometry clears chips quickly to reduce heat buildup and extend bit life. The 135-degree split point tip starts on contact, eliminating walking and delivering fast, accurate hole placement. At 6 inches in length and 0.13 pounds, this bit is suited for electricians, plumbers, HVAC technicians, and general contractors who drill through metal, wood, and PVC regularly.

This drill bit is designed for use with portable drills in residential and commercial jobsite environments. The reduced shank diameter allows use in 3/8-inch chucks, making it compatible with a wide range of common drill models. The 3-flat Secure-Grip shank locks firmly in the chuck to prevent slipping during high-torque or repetitive drilling operations. It performs reliably on curved and irregular surfaces, which is a common requirement when routing conduit, pipe, or cable through structural members.

Key Features

• Thicker Thunderbolt web core resists side-load breakage and extends service life
• 135-degree split point tip starts on contact and prevents walking
• Parabolic flute design clears chips fast to reduce heat and improve hole quality
• 3-flat Secure-Grip shank prevents slipping in the chuck during drilling
• Black oxide coating provides lubricity and corrosion resistance
• Reduced shank diameter fits 3/8-inch drill chucks

Compatibility

Designed for use with portable electric drills equipped with 3/8-inch or larger keyed or keyless chucks. Effective for drilling through metal, wood, and PVC.

Installation Notes

Installation of this drill bit should be performed by a qualified tradesperson following applicable safety procedures. Ensure the drill is powered off and the chuck is fully released before inserting or removing the bit. Secure the 3-flat shank firmly in the chuck before operation. Always wear appropriate eye protection when drilling, and verify the workpiece is properly clamped or secured before starting.

Technical Specifications

• Length: 6 inches
• Point Angle: 135 degrees
• Shank Type: 3-Flat Secure-Grip
• Coating: Black Oxide
• Flute Design: Parabolic
• Compatible Chuck Size: 3/8 inches and larger
• Weight: 0.13 pounds
• UOM: Each

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 48-89-2730