Milwaukee 48-89-2527 Cobalt Jobber Drill Bit 5.9 in

Product Description

The MILWAUKEE 48-89-2527 is a cobalt jobber-length twist drill bit engineered for long tool life in hard metal applications. It features a variable helix design with an aggressive 35-degree entry angle that transitions to 15 degrees, promoting rapid chip evacuation and limiting heat buildup at the cutting edge. The 135-degree split point tip provides a precise, self-centering start and eliminates walking on smooth or curved surfaces. This bit ships as a single unit and is suited for use in any standard drill chuck by HVAC technicians, electricians, plumbers, pipefitters, and other trade professionals drilling into steel, stainless, and other hard metals.

The 48-89-2527 is built for jobsite conditions where hard or abrasive metals are drilled repeatedly. The cobalt construction gives it substantially longer service life compared to standard black oxide bits, making it a practical choice for production drilling, fabrication work, and field service repairs where bit replacement is costly and downtime matters. It accepts standard twist-drill chucks and works in corded or cordless drill drivers.

Key Features

• Variable helix geometry: 35-degree entry angle transitions to 15 degrees for rapid chip removal and reduced heat
• 135-degree split point tip for self-centering start and no walking
• Cobalt construction rated for up to 10x longer life versus black oxide twist bits
• Chip breaker design further limits heat buildup during extended drilling cycles
• Secure-grip shank geometry helps prevent bit slipping in the chuck
• Metric sizing; sold individually

Compatibility

Designed as an OEM-style jobber-length drill bit compatible with standard three-jaw twist-drill chucks used in corded and cordless drill drivers across trade and industrial applications.

Installation Notes

Installation of this bit is performed by trade professionals using a corded or cordless drill with a compatible chuck size. Secure the shank fully in the chuck and verify the bit is centered before applying feed pressure. Use cutting fluid or coolant when drilling stainless steel or other work-hardening alloys to extend bit life. Inspect the cutting edges for wear before each use and replace when the split point shows signs of dulling.

Technical Specifications

• Length: 5.9 inches (overall package length: 7.75 inches)
• Package Width: 1.85 inches
• Package Height: 0.45 inches
• Weight: 0.22 pounds
• Helix Angle: 35 degrees (entry) to 15 degrees
• Split Point Angle: 135 degrees
• Bit Type: Cobalt Jobber Length Twist Drill
• Sold As: Each
• UPC: 045242519576

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 48-89-2527