Milwaukee 48-89-4809 Titanium Jobber Drill Bit Impact Duty

Product Description

The MILWAUKEE 48-89-4809 is a titanium-coated jobber length drill bit engineered for use with both impact drivers and standard drills. It features a variable helix geometry that starts at an aggressive 35-degree angle and transitions down to 15 degrees, promoting rapid chip evacuation to reduce heat buildup and extend cutting life. The 135-degree split point tip provides a precise, self-centering start that prevents bit walking. The titanium coating delivers up to 3x the service life compared to standard black oxide bits. Licensed electricians, plumbers, and general contractors reach for this bit when production drilling speed and bit longevity matter on the job.

This bit is suited for a wide range of drilling applications across trade and commercial job sites. The metric sizing makes it a practical choice for technicians working with metric-spec fasteners, fixtures, or equipment. Its impact-duty construction handles the rotational shock loads generated by impact drivers without premature shank failure, making it appropriate for high-cycle production drilling in metal, wood, and similar substrates where titanium coating provides a meaningful performance advantage over uncoated bits.

Key Features

• Titanium coating provides up to 3x service life vs. black oxide drill bits
• Variable helix design: 35-degree aggressive entry angle transitions to 15 degrees for rapid chip removal and reduced heat buildup
• Impact-duty construction engineered to withstand rotational shock from impact drivers
• 135-degree split point tip for self-centering start and no bit walking
• Chip breaker geometry further limits heat buildup during extended drilling cycles
• Metric sizing for compatibility with metric-spec applications

Compatibility

Designed for use with standard drill/drivers and impact drivers across general trade and construction drilling applications in metal, wood, and similar materials.

Installation Notes

Install the bit securely into the chuck or quick-connect collet before operation. Verify the driver is set to an appropriate speed and torque mode for the substrate being drilled. Wear eye protection when drilling, as chip ejection is accelerated by the variable helix geometry. Inspect the cutting edge and titanium coating condition periodically; replace the bit when tip geometry shows visible wear to maintain hole accuracy.

Technical Specifications

• Coating: Titanium
• Point Angle: 135 degrees split point
• Helix Angle: Variable, 35 degrees to 15 degrees
• Sizing Standard: Metric
• Length: 5.7 inches
• Width: 1.85 inches
• Height: 0.3 inches
• Weight: 0.04 pounds
• UOM: Each

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 48-89-4809