Eagle Cutting Tool 1090D-055-I Drill Bit 55/64 in

Product Description

The EAGLE CUTTING TOOL 1090D-055-I is a 55/64-inch diameter drill bit featuring a 1/2-inch reduced shank, designed for use in standard 1/2-inch chuck drilling equipment. Part of the Dyno Black and Gold series, this bit is built for production drilling applications where consistent hole sizing and extended run life are priorities. The 1/2-inch shank allows the larger-diameter bit to seat securely in common drill presses and hand-held power drills without requiring an oversized chuck. Machinists, fabricators, and maintenance trades rely on this size for precision through-holes in metal, wood, and composite materials.

This drill bit is suited for shop, field, and maintenance environments where fractional drill sizes larger than standard jobber sets are required. The 55/64-inch diameter is commonly specified for bolt clearance holes, pipe fitting preparation, and custom fabrication work. The reduced 1/2-inch shank makes it compatible with widely available drilling equipment, reducing the need for specialized tooling. It is appropriate for use in both light industrial and heavy trade settings.

Key Features

• 55/64-inch cutting diameter for large fractional hole applications
• 1/2-inch reduced shank fits standard 1/2-inch capacity chucks
• Dyno Black and Gold series construction for durability in production drilling
• Import grade offering a cost-effective option for general shop use
• Minimum order quantity of 1 unit for flexible purchasing

Compatibility

Designed for use with standard 1/2-inch chuck drill presses and power drills. No specific equipment model compatibility was provided in the product data.

Installation Notes

Install in a properly rated drill press or power drill with a 1/2-inch chuck capacity. Secure the shank fully in the chuck before operation and confirm the bit is centered and locked. Always wear appropriate eye and hand protection when drilling. Follow applicable shop safety standards and equipment manufacturer guidelines for speed and feed rates appropriate to the material being drilled.

Technical Specifications

• Cutting Diameter: 55/64 inches
• Shank Size: 1/2 inch
• Weight: 0.69 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: 1090D-055-I