Milwaukee 48-89-2526 Cobalt Jobber Drill Bit 5.6 Inch

Product Description

The MILWAUKEE 48-89-2526 is a cobalt jobber-length twist drill bit built for hard metal drilling applications. It features a variable helix design with an aggressive 35-degree entry angle that transitions to 15 degrees at the tip, promoting rapid chip evacuation and reducing heat buildup during extended use. The 135-degree split point provides a self-starting tip that eliminates walking on contact, delivering fast, accurate hole placement. A chip breaker geometry further controls heat, and a knurled shank section provides a secure grip in the chuck. This bit is sold individually and is sized in metric. It is intended for licensed trades and experienced technicians drilling into hard metals such as stainless steel, tool steel, cast iron, and high-alloy materials.

This drill bit suits residential and commercial metalworking tasks where standard high-speed steel bits wear prematurely. Typical applications include HVAC fabrication, electrical panel work, plumbing fixture drilling, and general trade-shop use. The cobalt alloy construction makes it appropriate for hand-held drills, drill presses, and magnetic base drills operating on ferrous and non-ferrous hard metals. It is a single-piece metric-sized bit, usable across all standard twist drilling setups.

Key Features

• Variable helix geometry: 35-degree aggressive angle transitions to 15 degrees for rapid chip removal and reduced heat
• 135-degree split point tip for self-starting precision with no walking
• Chip breaker design limits heat buildup during extended hard-metal drilling
• Knurled shank section provides secure chuck grip and prevents bit slippage
• Cobalt alloy construction rated for up to 10 times the service life of black oxide bits
• Metric sizing for use in metric-spec fabrication and service work

Compatibility

Designed as an OEM-style jobber-length drill bit compatible with standard 3-jaw keyed and keyless chucks on hand drills, drill presses, and magnetic base drills that accept metric-sized round shanks.

Installation Notes

A licensed technician or experienced tradesperson should verify chuck capacity matches the bit shank diameter before seating the bit. Secure the workpiece fully before drilling to prevent movement. Use appropriate cutting fluid or lubricant when drilling hard ferrous metals to extend bit life and manage heat. Follow applicable shop safety standards including eye protection and secure workholding throughout the operation.

Technical Specifications

• Length: 5.6 inches
• Package Length: 7.7 inches
• Package Width: 1.85 inches
• Package Height: 0.45 inches
• Weight: 0.19 pounds
• Helix Angle: 35 degrees (entry) to 15 degrees (tip)
• Point Angle: 135 degrees split point
• Sizing System: Metric
• Unit of Measure: Each
• UPC: 045242519569

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 48-89-2526