Eagle Cutting Tool C1090-054-I Cobalt Stub Drill Bit

Product Description

The EAGLE CUTTING TOOL C1090-054-I is a 27/32-inch cobalt stub drill bit with a 1/2-inch reduced shank, built for drilling into hard metals, stainless steel, and tough alloys. Cobalt construction provides superior heat resistance compared to standard high-speed steel, making it well-suited for demanding production and maintenance applications. The stub-length body delivers increased rigidity and reduced deflection, which is critical when precision hole placement is required. Weighing 0.69 pounds, this import-grade bit is designed for use in standard drill presses and handheld power tools accepting a 1/2-inch chuck.

This bit is intended for metal fabrication shops, industrial maintenance technicians, HVAC installers, plumbers, and electricians who regularly drill through structural steel, angle iron, pipe flanges, or thick sheet metal. The stub drill profile is especially useful in confined spaces or when drilling through stacked material where a jobber-length bit would flex or chatter. It suits both bench-mounted drill presses and heavy-duty right-angle or corded power drills with a 1/2-inch chuck capacity.

Key Features

• 27/32-inch cobalt cutting diameter for oversized hole applications
• 1/2-inch reduced shank fits standard 1/2-inch drill chucks
• Stub-length body increases rigidity and minimizes bit deflection
• Cobalt alloy construction resists heat buildup during extended drilling cycles
• Suitable for drilling hardened metals, stainless steel, and tough alloys

Compatibility

Designed as an OEM-style stub drill bit for use in any drill press or power drill accepting a 1/2-inch shank. No specific model compatibility data was provided with this listing.

Installation Notes

Install and removal should be performed by a qualified tradesperson using appropriate chuck keys and securing the workpiece firmly before drilling. Always power down and disconnect the drill from its power source before changing bits. Use cutting fluid or lubricant when drilling ferrous metals to extend bit life and reduce heat. Eye protection and chip guards are standard safety requirements when operating drill equipment.

Technical Specifications

• Cutting Diameter: 27/32 inches
• Shank Diameter: 1/2 inch
• Drill Type: Stub Length
• Material: Cobalt
• Weight: 0.69 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: C1090-054-I