Milwaukee 48-89-2736 Black Oxide Jobber Drill Bit 6 in

Product Description

The MILWAUKEE 48-89-2736 is a black oxide jobber-length drill bit built for demanding trade applications where durability and hole accuracy are non-negotiable. It features a Thunderbolt web design with a thicker core than standard drill bits, delivering greater resistance to side-load breakage. The 135-degree split point tip starts on contact for precise hole placement and prevents walking on curved or irregular surfaces. A parabolic flute geometry clears chips rapidly, reducing heat buildup and extending bit life. Licensed tradespeople and maintenance mechanics reach for this bit when drilling through metal, wood, and PVC with portable drills on the job.

This bit is suited for general-purpose drilling in both residential and commercial settings. The reduced shank diameter allows use in 3/8-inch chucks, making it compatible with a wide range of portable drills commonly found in electrical, HVAC, plumbing, and general mechanical trades. The 3-flat Secure-Grip shank locks firmly in the chuck to prevent slipping under load, which is especially useful during overhead or one-handed drilling operations. Black oxide coating provides lubricity and corrosion resistance for extended service life across repeated uses.

Key Features

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

Compatibility

Designed for use with portable drills equipped with 3/8-inch or larger chucks. Suitable for drilling metal, wood, and PVC in general trade and maintenance applications.

Installation Notes

Installation of this drill bit is performed by electricians, HVAC technicians, plumbers, and general tradespeople using standard portable or corded drills. Ensure the chuck is fully tightened around all three flats of the shank before drilling to prevent slipping. Wear appropriate eye protection when drilling metal or PVC. Allow the bit to cool between extended use cycles to preserve the black oxide coating and cutting edge.

Technical Specifications

• Drill Bit Length: 6 inches
• Point Angle: 135 degrees split point
• Shank Type: 3-flat Secure-Grip reduced shank
• Compatible Chuck Size: 3/8 inch minimum
• Coating: Black oxide
• Package Weight: 0.18 pounds
• Package Length: 7.75 inches
• Package Width: 1.88 inches
• Package Height: 0.47 inches
• Unit of Measure: Each

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 48-89-2736