Eagle Cutting Tool C1080-036-D Cobalt Drill Bit 9/16 in

Product Description

The EAGLE CUTTING TOOL C1080-036-D is a 9/16-inch cobalt screw machine (stub) length drill bit with a 1/2-inch shank, manufactured in the USA. Cobalt construction provides increased heat resistance and edge retention compared to standard high-speed steel, making this bit well suited for drilling hard or abrasive materials including stainless steel, cast iron, and high-strength alloys. The stub length body reduces deflection and improves hole accuracy in tight setups. Licensed tradespeople and machining professionals reach for this style when precision and durability are priorities in production or field drilling applications.

This bit is appropriate for use in a wide range of industrial and trade environments, including HVAC fabrication, plumbing rough-in, electrical panel work, and general metalworking. The 1/2-inch shank seats in standard 1/2-inch drill chucks and magnetic drill press adapters. Its stub length geometry is particularly effective when working in confined spaces or when a shorter cutting tool is needed to reduce runout on a drill press or portable drill motor.

Key Features

• Cobalt steel construction for extended tool life in hard metals and abrasive materials
• 9/16-inch cutting diameter with stub screw machine length for reduced deflection
• 1/2-inch shank compatible with standard drill chucks and adapters
• Made in the USA
• Minimum order quantity of 1 — available as a single unit

Compatibility

Designed as an OEM-style replacement or direct-purchase cutting tool for use in any 1/2-inch capacity drill chuck, drill press, or magnetic drill unit requiring a 9/16-inch cobalt stub length drill bit.

Installation Notes

A licensed machinist or qualified tradesperson should secure the 1/2-inch shank firmly in the chuck before operating. Use appropriate cutting fluid or coolant when drilling hard metals to preserve edge life and prevent workpiece heat buildup. Ensure the workpiece is clamped securely before drilling to prevent bit walking or binding. Eye protection and proper chip management are required per standard shop safety practice.

Technical Specifications

• Cutting Diameter: 9/16 inches
• Shank Diameter: 1/2 inches
• Drill Series: Screw Machine (Stub) Length
• Material: Cobalt Steel
• Country of Origin: USA
• Weight: 0.69 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: C1080-036-D