Milwaukee 48-89-2506 Cobalt Jobber Drill Bit 2.6 Inch

Product Description

The MILWAUKEE 48-89-2506 is a cobalt jobber-length twist drill bit built for cutting hard metals and abrasive materials in demanding trade and industrial applications. The bit features a variable helix geometry with an aggressive 35-degree entry angle that transitions to 15 degrees, promoting rapid chip evacuation and limiting heat buildup at the cutting zone. A 135-degree split point tip enables precise starts without center-punching and eliminates walking on smooth or curved surfaces. The shank incorporates a secure-grip flat to prevent slipping in standard chucks. This is a metric-sized bit sold individually.

The 48-89-2506 is suited for electricians, pipefitters, ironworkers, and fabricators who drill through stainless steel, hardened steel, cast iron, and other tough metals on the job or in the shop. The jobber-length format is the standard choice for general-purpose through-hole drilling in structural steel, angle iron, conduit bodies, and similar hard-metal workpieces. The cobalt steel construction provides substantially longer service life compared to standard black oxide bits, making it a cost-effective choice for high-frequency drilling tasks.

Key Features

• Cobalt steel construction rated for up to 10x the service life of black oxide bits in hard metal
• Variable helix design: 35-degree cutting angle transitions to 15 degrees for rapid chip removal
• 135-degree split point tip for accurate, no-walk starts without center punching
• Integrated chip breaker geometry reduces heat buildup and extends cutting edge life
• Secure-grip shank flat prevents rotation in standard 3-jaw chucks
• Metric sizing — sold individually (each)

Compatibility

Designed for use in standard jobber-length drill chucks and compatible with any drill press, corded drill, or heavy-duty cordless drill capable of accepting the shank diameter. Suitable for all twist drilling applications in hard and soft metals.

Installation Notes

Installation of this bit is performed by electricians, pipefitters, ironworkers, fabricators, and other trades requiring metal-drilling capability. Secure the bit firmly in the chuck before operation and confirm the workpiece is clamped or fixtured to prevent movement. Use appropriate cutting fluid or lubricant when drilling hard metals to further reduce heat and extend bit life. Inspect the cutting edges for wear regularly, particularly after use in hardened or abrasive materials.

Technical Specifications

• Length: 5.7 inches
• Width: 1.85 inches
• Height: 0.2 inches
• Weight: 0.03 pounds
• Point Angle: 135 degrees split point
• Helix Angle: 35 degrees (entry) to 15 degrees
• Sizing Standard: Metric
• Sold As: Each
• UPC: 045242519361

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 48-89-2506