Milwaukee 48-89-2322 Cobalt Drill Bit 25/64 in 3-pack

Product Description

The Milwaukee Electric Tool Corp 48-89-2322 is a cobalt drill bit designed for drilling through hard metals and demanding materials encountered in mechanical, electrical, and plumbing rough-in work. Built with a RED HELIX geometry, this 25/64-inch bit features an optimized helix angle that improves chip evacuation and reduces heat buildup during extended drilling cycles. The cobalt construction gives it greater heat resistance than standard high-speed steel bits, making it a practical choice when working through stainless steel, cast iron, or hardened fastener stock. This listing includes 3 bits per package, reducing downtime on jobs where bit wear is a regular factor.

This bit is suited for trade professionals who drill frequently into hard metals as part of daily workflow. HVAC technicians, pipefitters, electricians, and sheet metal workers will find the 25/64-inch diameter useful for pilot holes, conduit knockouts, and anchor bolt clearances. The cobalt composition holds up in high-heat drilling conditions where standard twist bits degrade quickly, making it well matched for production-style work or repeated cuts in the same material type.

Key Features

• RED HELIX design improves chip evacuation and reduces heat buildup during use
• Cobalt construction provides superior heat and wear resistance compared to standard HSS bits
• 25/64-inch diameter suits common trade drilling tasks including pilot holes and clearance bores
• 3-piece package quantity reduces job-site restocking interruptions
• Compatible with standard drill chucks used in corded and cordless drill drivers

Compatibility

Designed for use with standard 3/8-inch and 1/2-inch keyed or keyless drill chucks on corded or cordless drill drivers. No specific OEM system compatibility was stated in the product data.

Installation Notes

Cobalt drill bits should be installed in a properly rated drill with a secure chuck before use. Always secure the workpiece and wear appropriate eye protection when drilling through hard metals. Use cutting fluid when drilling through stainless steel or thick ferrous stock to extend bit life and improve cut quality. Bit selection and drilling technique should follow applicable trade standards and employer safety guidelines.

Technical Specifications

• Drill Bit Diameter: 25/64 inches
• Material: Cobalt
• Package Quantity: 3 per package
• Unit of Measure: EA
• Weight: 0.37 pounds

Standard Information

• Brand: Milwaukee Electric Tool Corp
• Manufacturer Part Number: 48-89-2322