Eagle Cutting Tool C1080-044-D Cobalt Drill Bit 11/16 in

Product Description

The EAGLE CUTTING TOOL C1080-044-D is a cobalt screw machine length (stub) drill bit designed for drilling in tough materials including hardened steel, stainless steel, and cast iron. Built to an 11/16-inch diameter with a 1/2-inch straight shank, this bit is manufactured in the USA and suited for use in drill presses, CNC machining centers, and heavy-duty hand drills. The shorter flute length of a screw machine design provides added rigidity and reduced deflection, making it a practical choice when hole accuracy and tool life are priorities in production or field work.

This drill bit is used in metalworking applications across industrial, commercial, and mechanical service environments. Machinists, pipefitters, ironworkers, and maintenance technicians reach for cobalt stub drills when working with high-strength alloys or abrasive metals where standard high-speed steel bits wear prematurely. The 1/2-inch shank fits standard 1/2-inch drill chucks common to both benchtop and floor-standing equipment.

Key Features

• Cobalt construction for improved heat resistance and extended tool life in hard metals
• 11/16-inch drill diameter for mid-range hole sizing in structural and mechanical work
• 1/2-inch straight shank compatible with standard 1/2-inch chucks
• Screw machine (stub) length provides increased rigidity and reduced chatter
• Made in the USA

Compatibility

Designed as a screw machine length cobalt drill bit for use in any drill press, CNC machine, or hand drill equipped with a 1/2-inch or larger chuck. Suitable for drilling steel, stainless steel, cast iron, and similar ferrous materials.

Installation Notes

Secure the shank fully in the drill chuck before operation and verify chuck key is removed prior to starting the spindle. Use appropriate cutting fluid or coolant when drilling hard metals to extend bit life and maintain hole quality. Operators should wear eye protection and secure the workpiece to prevent movement during drilling. Inspect the cutting edges for wear before each use and replace bits that show signs of chipping or excessive dulling.

Technical Specifications

• Drill Diameter: 11/16 inches
• Shank Diameter: 1/2 inches
• Drill Type: Screw Machine Length (Stub)
• Material: Cobalt
• Country of Origin: USA
• Weight: 0.69 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: C1080-044-D