Eagle Cutting Tool 1090-056-I 7/8 in Hss Drill Bit

Product Description

The EAGLE CUTTING TOOL 1090-056-I is a 7/8 inch diameter high-speed steel (HSS) slow spiral drill bit with a 1/2 inch reduced shank, sourced as an import-grade cutting tool for professional trade use. Slow spiral flute geometry reduces chip packing when drilling softer materials such as aluminum, brass, plastics, and wood composites. The 1/2 inch shank allows this oversized bit to seat in standard 1/2 inch chuck drill presses and hand drills without requiring a large-capacity chuck. This bit is used by HVAC technicians, plumbers, electricians, and general contractors who need a reliable large-diameter hole in sheet metal, PVC, wood framing, or similar substrates.

This drill bit is suited to residential and light commercial applications where a 7/8 inch hole is required for conduit knock-outs, pipe penetrations, duct mounting hardware, or structural framing pass-throughs. The reduced 1/2 inch shank makes it compatible with commonly available drill presses and portable power drills on the job site. It is an import-grade option appropriate for intermittent production use or situations where cost efficiency is a priority alongside adequate cutting performance.

Key Features

• 7/8 inch cutting diameter for large-bore hole applications
• High-speed steel (HSS) construction provides heat resistance during cutting
• Slow spiral flute design reduces chip packing in soft metals, plastics, and wood
• 1/2 inch reduced shank fits standard 1/2 inch drill chucks
• Lightweight at 0.69 pounds for easy handling and transport

Compatibility

Designed as a general-purpose large-diameter HSS drill bit compatible with any drill press or portable drill equipped with a 1/2 inch chuck capacity.

Installation Notes

This bit is installed and operated by qualified trades including HVAC technicians, electricians, and plumbers. Always secure the workpiece before drilling and use appropriate cutting fluid when drilling through metal to extend bit life and reduce heat buildup. Inspect the cutting edges before each use and replace the bit if chipping or dulling is observed. Follow applicable workplace safety standards when operating rotary cutting tools.

Technical Specifications

• Cutting Diameter: 7/8 inches
• Shank Diameter: 1/2 inches
• Material: High-Speed Steel (HSS)
• Flute Type: Slow Spiral
• Weight: 0.69 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: 1090-056-I