Eagle Cutting Tool A712-031-I Hss Aircraft Drill 31/64 in

Product Description

The EAGLE CUTTING TOOL A712-031-I is a high-speed steel (HSS) aircraft extension drill bit designed for deep-reach drilling applications in tight or thick workpieces. With a 31/64 inch diameter and a 12 inch overall length (OAL), this bit gives technicians the reach needed to access confined areas that standard-length bits cannot penetrate. HSS construction provides hardness and heat resistance suitable for drilling through steel, aluminum, and other common trade metals encountered in HVAC, plumbing, and electrical rough-in work.

Aircraft extension drill bits like the A712-031-I are used wherever standard drill bit length falls short — routing conduit, drilling through deep wall assemblies, installing ductwork hangers, or accessing structural framing in retrofit installations. The extended shank makes this bit a go-to for electricians and HVAC installers working through multiple layers of material or deep box sections where chuck clearance is limited.

Key Features

• 31/64 inch diameter for precision hole sizing
• 12 inch overall length provides extended reach into confined spaces
• High-speed steel (HSS) construction for durability and heat resistance
• Aircraft-style extension geometry suited for deep-hole drilling in trade applications

Compatibility

Designed as a standard aircraft extension drill bit compatible with 3/8 inch and 1/2 inch keyed or keyless drill chucks commonly used in trade installations.

Installation Notes

Install this bit securely in a drill chuck rated for the shank diameter before use. Electricians, HVAC installers, and plumbers should ensure the workpiece is clamped or secured before drilling to prevent walking. Use appropriate cutting fluid when drilling through ferrous metals to extend bit life and reduce heat buildup. Follow applicable NEC or local code requirements when drilling through fire-rated assemblies or structural members.

Technical Specifications

• Diameter: 31/64 inch
• Overall Length (OAL): 12 inches
• Material: High-Speed Steel (HSS)
• Weight: 0.24 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: A712-031-I