Eagle Cutting Tool 1090-045-I Silver Deming Drill Bit

Product Description

The EAGLE CUTTING TOOL 1090-045-I is a 45/64 inch High Speed Steel (HSS) Silver Deming drill bit with a reduced 1/2 inch shank. Silver Deming bits are designed for drilling holes larger than the capacity of a standard 1/2 inch chuck. The reduced shank allows the bit to seat in a standard drill press or handheld drill with a 1/2 inch chuck, while the full-diameter cutting end bores oversized holes through metal, wood, and plastics. Machinists, maintenance technicians, pipefitters, and electricians reach for Silver Deming bits when a step bit or hole saw is not practical for the application.

This bit is suited for production drilling, job-site work, and shop use where a 45/64 inch bore is required. Common applications include drilling conduit knockouts, pipe clearance holes, bolt-clearance holes in structural steel, and custom fabrication tasks. The import-grade construction makes it a cost-effective option for intermittent use, secondary operations, or situations where tooling consumption rates are high.

Key Features

• 45/64 inch cutting diameter for oversized hole requirements beyond standard jobber drill capacity
• High Speed Steel (HSS) construction provides hardness and heat resistance for metal drilling
• Reduced 1/2 inch straight shank fits standard 1/2 inch drill press and handheld drill chucks
• Silver Deming-style design bridges the gap between standard jobber bits and annular cutters
• Minimum order quantity of 1 unit, suitable for single-piece procurement

Compatibility

Designed for use in any drill press or handheld drill equipped with a 1/2 inch chuck. Fits standard 3-jaw chucks accepting straight reduced shanks.

Installation Notes

This bit is installed and operated by machinists, maintenance technicians, and trade professionals using a drill press or heavy-duty handheld drill. Always secure the workpiece with a clamp or vise before drilling to prevent rotation. Use appropriate cutting fluid when drilling through ferrous metals to extend bit life and reduce heat buildup. Inspect the cutting edges before use and replace the bit if chipping or dulling is observed.

Technical Specifications

• Cutting Diameter: 45/64 inches
• Shank Diameter: 1/2 inch
• Shank Type: Straight Reduced
• Material: High Speed Steel (HSS)
• Weight: 0.69 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: 1090-045-I