Milwaukee 48-89-2312 Cobalt Drill Bit 15/64 in 5-pack

Product Description

The Milwaukee Electric Tool Corp 48-89-2312 is a RED HELIX cobalt drill bit designed for drilling through hard metals, stainless steel, and other tough materials encountered in mechanical, electrical, and plumbing trades. At 15/64 inches in diameter, it fits a wide range of drilling applications where standard high-speed steel bits fall short. The cobalt construction provides superior heat resistance, allowing the bit to maintain a sharp cutting edge under sustained load. This package contains 5 bits, making it practical for job site use where bit wear or breakage is a routine consideration.

This drill bit is suited for trade professionals who regularly drill through hardened steel, cast iron, stainless, or abrasive alloys. Common applications include drilling pilot holes in HVAC equipment enclosures, electrical panels, structural steel, and plumbing fixtures. The 15/64-inch diameter is a practical size for bolt clearance holes and conduit knockout prep work. The 5-pack format supports multi-tech crews and service vehicles where backup tooling is kept on hand.

Key Features

• RED HELIX cobalt construction for extended heat resistance in hard-material drilling
• 15/64-inch diameter suits bolt clearance and pilot hole applications across multiple trades
• Cobalt steel maintains cutting edge integrity under high-friction, sustained drilling
• Sold as a 5-pack, reducing downtime from bit wear or breakage on the job

Compatibility

Designed as a standard round-shank cobalt drill bit compatible with 3-jaw keyed or keyless chucks on corded and cordless drills accepting 15/64-inch shank sizes.

Installation Notes

Cobalt drill bits should be installed by a qualified tradesperson familiar with metal drilling practices. Always secure the workpiece before drilling and use appropriate cutting fluid on hard metals to reduce heat buildup and extend bit life. Wear appropriate PPE including eye protection. Follow applicable safety standards for power tool use on the job site.

Technical Specifications

• Drill Bit Diameter: 15/64 inches
• Bit Material: Cobalt
• Package Quantity: 5 per package
• Unit of Measure: EA
• Weight: 0.24 pounds

Standard Information

• Brand: Milwaukee Electric Tool Corp
• Manufacturer Part Number: 48-89-2312