Eagle Cutting Tool 1090-055-I Hss Drill Bit 55/64 Inch

Product Description

The EAGLE CUTTING TOOL 1090-055-I is a 55/64 inch high speed steel (HSS) slow-spiral drill bit with a 1/2 inch reduced shank. Designed for precision drilling in metal, wood, and composite materials, this bit is built for trade and industrial applications where consistent hole geometry and tool longevity are required. The HSS construction provides the hardness needed to cut through ferrous and non-ferrous metals without rapid dulling. At 0.69 pounds, it is a solid, single-piece tool suited for use in drill presses and heavy-duty hand drills.

This drill bit is appropriate for fabrication shops, mechanical contractors, plumbing rough-in, HVAC sheet metal work, and general industrial drilling tasks. The 1/2 inch shank allows it to seat securely in standard 1/2 inch drill chucks commonly found on bench drill presses and corded hand drills. The 55/64 inch diameter is a less common size, making it particularly useful when a close-tolerance hole is required that a standard fractional or letter-size bit would not produce.

Key Features

• 55/64 inch cutting diameter for close-tolerance hole sizing
• High speed steel (HSS) construction for durability in metal drilling applications
• 1/2 inch reduced shank fits standard 1/2 inch drill chucks
• Suitable for use in drill presses and heavy-duty corded drills
• Weighs 0.69 pounds — solid single-piece construction

Compatibility

Designed as an OEM-style replacement or direct-use drill bit compatible with any drill press or hand drill equipped with a standard 1/2 inch chuck.

Installation Notes

Installation is performed by machinists, fabricators, and trade professionals using a drill press or heavy-duty corded drill. Secure the 1/2 inch shank firmly in the chuck before operation and verify chuck key removal prior to powering the tool. Use appropriate cutting fluid when drilling through ferrous metals to extend bit life and maintain hole quality. Follow applicable shop safety standards and wear eye protection during all drilling operations.

Technical Specifications

• Cutting Diameter: 55/64 inches
• Shank Diameter: 1/2 inch
• Material: High Speed Steel (HSS)
• Weight: 0.69 pounds

Standard Information

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