Milwaukee 48-89-2722 Thunderbolt Black Oxide Drill Bit 6 in

Product Description

The MILWAUKEE 48-89-2722 is a Thunderbolt black oxide jobber length drill bit built for extreme durability and long service life in demanding job site conditions. The bit features a thicker-than-standard web core that resists side-load breakage, a parabolic flute form that evacuates chips quickly to reduce heat buildup, and a 135-degree split point tip that starts on contact without walking. At 6 inches in length, it is suited for deeper holes in a wide range of materials. This bit is intended for use by trade professionals and experienced tradespeople who require consistent, accurate hole placement.

This drill bit is well suited for general-purpose drilling in metal, wood, and similar materials on residential and commercial job sites. The reduced shank diameter allows use in 3/8-inch chucks, making it compatible with a wide range of portable drills. The parabolic flute geometry is especially useful when drilling on curved or irregular surfaces where chip clearing and bit stability matter most. Minimum purchase quantity is 5 units per order.

Key Features

• Thicker web core provides greater strength and resists side-load breakage
• 135-degree split point tip starts on contact to prevent bit walking and improve hole accuracy
• Parabolic flute form clears chips and debris quickly to keep the bit cooler during use
• 3-flat Secure-Grip shank holds firmly in the drill chuck to reduce slipping
• Reduced shank diameter fits 3/8-inch chucks for use with most portable drills
• Black oxide coating resists corrosion and provides lubricity for smoother drilling

Compatibility

Designed for use with portable drills equipped with 3/8-inch or larger chucks; suitable for general-purpose jobber-length drilling applications across common trade and construction tasks.

Installation Notes

Secure the bit firmly in the drill chuck before operation, verifying the 3-flat shank is fully seated and the chuck is tightened. Inspect the bit for wear or damage before each use and replace if the tip or flutes show signs of degradation. When drilling metal, use appropriate cutting fluid to extend bit life and improve cut quality.