Milwaukee 48-89-4803 Titanium Jobber Drill Bit

Product Description

The MILWAUKEE 48-89-4803 is a titanium-coated jobber-length drill bit built for use with both standard drills and impact drivers. It features a variable helix design with an aggressive 35-degree angle that transitions to 15 degrees, promoting rapid chip evacuation and limiting heat buildup during drilling. The 135-degree split point tip delivers a self-centering start that eliminates walking on contact. The titanium coating extends service life significantly compared to standard black oxide bits, making this a reliable choice for professionals drilling in metal, wood, and other common jobsite materials.

This drill bit is suited for general trade use across HVAC, electrical, plumbing, and light fabrication applications. It is sold as a single unit and is sized to metric specifications. The variable helix geometry makes it especially effective in applications where chip clearance and heat management are concerns, such as drilling stacked materials or working in confined spaces on the job.

Key Features

• Titanium coating rated for up to 3X service life versus black oxide drill bits
• Variable helix design: 35-degree aggressive angle transitioning to 15 degrees for rapid chip removal
• 135-degree split point tip for self-centering start and no walking
• Engineered for compatibility with both standard drills and impact drivers
• Chip breaker geometry reduces heat buildup during extended use
• Metric sizing

Compatibility

Designed as a jobber-length drill bit for use with standard keyed and keyless drill chucks as well as impact drivers accepting round-shank bits in typical trade drilling applications.

Installation Notes

Installation of this drill bit is performed by electricians, HVAC technicians, plumbers, and general tradespeople. Secure the shank fully in the chuck before operation and verify the chuck is tightened to prevent slippage. Reduce feed pressure when breaking through material to avoid bit deflection or workpiece damage. Wear appropriate eye protection per jobsite safety requirements.

Technical Specifications

• Coating: Titanium
• Point Angle: 135 degrees split point
• Helix Angle: Variable, 35 degrees to 15 degrees
• Sizing Standard: Metric
• Length: 5.75 inches
• Width: 1.85 inches
• Height: 0.25 inches
• Weight: 0.05 pounds
• Sold As: Each
• UPC: 045242520046

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 48-89-4803