Milwaukee 48-89-2301 Cobalt Drill Bit 1/16 Inch 5 Pack

Product Description

The Milwaukee Electric Tool Corp 48-89-2301 is a cobalt drill bit designed for drilling into hard metals, stainless steel, cast iron, and other tough materials encountered in mechanical and trade work. Built with a RED HELIX geometry, the bit is engineered for faster chip removal and reduced heat buildup during sustained drilling. At 1/16 inch in diameter, it handles small-diameter pilot holes and precision work where accuracy and bit integrity matter. This 5-pack format keeps replacements on hand for high-wear applications. Each bit ships as an individual unit within the pack quantity of 5, weighing approximately 0.07 pounds total.

This cobalt drill bit is suited for use in HVAC, plumbing, and electrical trades where drilling into sheet metal, metal enclosures, brackets, and structural components is routine. The 1/16 inch size is commonly used for pilot holes, sheet metal penetrations, and light metalwork on both residential and commercial job sites. Professional tradespeople who work with harder base metals will find the cobalt construction better suited to their material demands than standard high-speed steel alternatives.

Key Features

• Cobalt construction for improved hardness and heat resistance when drilling tough metals
• RED HELIX geometry promotes faster chip evacuation and cooler cutting
• 1/16 inch diameter handles small-diameter pilot holes and precision metalwork
• Pack quantity of 5 provides job-site redundancy for high-wear use
• Designed for use in standard drill chucks compatible with 1/16 inch shank sizing

Compatibility

Designed as an OEM-style replacement cobalt drill bit compatible with standard drill and driver chucks accepting a 1/16 inch shank diameter.

Installation Notes

Cobalt drill bits are installed by licensed electricians, HVAC technicians, plumbers, and general tradespeople using standard corded or cordless drills. Always secure the workpiece before drilling and use appropriate cutting fluid or lubricant when drilling hardened or stainless steel to extend bit life. Wear appropriate eye protection per job-site safety requirements. Do not apply excessive lateral force, which can snap small-diameter bits.

Technical Specifications

• Diameter: 1/16 inch
• Bit Material: Cobalt
• Package Quantity: 5 per pack
• Unit of Measure: EA
• Weight: 0.07 pounds

Standard Information

• Brand: Milwaukee Electric Tool Corp
• Manufacturer Part Number: 48-89-2301