Eagle Cutting Tool 1090-040-I Hss Silver Deming Drill Bit

Product Description

The EAGLE CUTTING TOOL 1090-040-I is a 5/8-inch Silver and Deming (SD) drill bit manufactured from high-speed steel (HSS). Silver and Deming bits feature a reduced 1/2-inch shank that fits standard 1/2-inch drill chucks, allowing oversized hole drilling without requiring a large-chuck machine. This bit is suited for metalworking, fabrication, and general maintenance tasks where a standard jobber-length bit falls short of the required hole diameter. Machinists, pipefitters, ironworkers, and maintenance technicians typically reach for this style of bit when boring through steel plate, pipe fittings, or structural members.

This bit is designed for use in hand-held corded drills, drill presses, and magnetic base drills equipped with a 1/2-inch chuck. It is a practical choice for field and shop applications in HVAC, plumbing, electrical, and general metalworking trades where clean, accurate large-diameter holes are required in metal substrates. The import designation indicates a cost-effective sourcing option suitable for moderate production and service work.

Key Features

• 5/8-inch cutting diameter for large-bore hole applications in metal
• High-speed steel (HSS) construction provides hardness and heat resistance during cutting
• Reduced 1/2-inch shank fits standard 1/2-inch drill chucks on common power tools
• Silver and Deming geometry with full-size body and reduced shank for versatile machine compatibility
• Minimum order quantity of 1 — available as a single unit

Compatibility

Designed as a standard Silver and Deming replacement or supplemental bit for use in any 1/2-inch chuck drill press, hand drill, or mag-base drill requiring a 5/8-inch cutting diameter.

Installation Notes

Install this bit securely into a properly tightened 1/2-inch chuck before use. Disconnect or de-energize the drill before changing bits. Use appropriate cutting fluid or lubricant when drilling steel to extend bit life and reduce heat buildup. Eye protection and work-holding equipment should be used in accordance with applicable shop safety standards.

Technical Specifications

• Cutting Diameter: 5/8 inches
• Shank Diameter: 1/2 inches
• Material: High-Speed Steel (HSS)
• Bit Type: Silver and Deming (SD)
• Weight: 0.69 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: 1090-040-I