Eagle Cutting Tool C1080-052-D Cobalt Drill Bit 13/16 in

Product Description

The EAGLE CUTTING TOOL C1080-052-D is a 13/16-inch cobalt screw machine (stub length) drill bit with a 1/2-inch reduced shank, manufactured in the USA. Cobalt construction provides superior heat resistance compared to standard high-speed steel, making this bit well suited for drilling hard, abrasive, or stainless-steel materials. The stub-length body offers increased rigidity and reduced deflection in tight-clearance applications. This bit weighs 0.69 pounds and is designed for production and maintenance drilling environments where durability and dimensional accuracy matter.

This drill bit is used in metalworking, fabrication, maintenance, and industrial production settings. The 1/2-inch shank fits standard 1/2-inch drill chucks and milling machine spindles. Screw machine length geometry makes it a strong choice for work in drill presses, lathes, and CNC machining centers where shorter flute length improves rigidity and chip control. Machinists, tool-and-die makers, pipefitters, and maintenance mechanics commonly keep cobalt stub drills on hand for hard-material work.

Key Features

• 13/16-inch cutting diameter for precise hole sizing
• Cobalt alloy steel construction resists heat buildup in hard-material drilling
• 1/2-inch reduced shank fits standard 1/2-inch drill chucks
• Stub-length (screw machine) body increases rigidity and reduces deflection
• Made in the USA

Compatibility

Designed as an OEM-style replacement or standard-stock cobalt stub drill for use in any 1/2-inch drill chuck or compatible spindle application requiring a 13/16-inch cutting diameter.

Installation Notes

This bit is installed by machinists or maintenance mechanics using a standard 1/2-inch drill chuck or collet system. Secure the shank fully in the chuck before operation and verify runout before cutting. Use appropriate cutting fluid when drilling hard metals to extend tool life. Wear proper PPE including eye protection whenever operating drilling equipment.

Technical Specifications

• Cutting Diameter: 13/16 inches
• Shank Diameter: 1/2 inch
• Drill Type: Screw Machine (Stub Length)
• Material: Cobalt Steel
• Country of Origin: USA
• Weight: 0.69 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: C1080-052-D