Fractional Drill Bit - 6In Aircraft Ext. - 5/16In Carded - Hanson

The Hanson 66720 5/16" Fractional Drill Bit is specifically engineered to meet the demanding requirements of professional technicians and mechanics. This 6-inch aircraft extension drill bit provides the critical reach needed for precise drilling in deep, obstructed, or otherwise challenging and confined workspaces. Crafted from durable high-speed steel, it ensures reliable performance across a variety of automotive and industrial applications where standard-length bits fall short.

Key Features

• Extended Reach Design: With a 6-inch aircraft extension length, this drill bit is purpose-built to access difficult-to-reach areas within machinery and vehicle assemblies.
• High-Speed Steel (HSS) Construction: Manufactured from high-speed steel for superior hardness, heat resistance, and wear resistance, ensuring a longer tool life and consistent performance under rigorous use.
• 135-Degree Split Point: Facilitates fast, accurate drilling starts without the necessity of a pilot hole, effectively minimizing bit "walking" and enhancing overall drilling efficiency on the workpiece.
• Heavy-Duty Web: Features a robust web design that significantly increases strength and rigidity, reducing the likelihood of breakage during intensive drilling operations and improving overall bit durability.
• Straight Shank: Designed for universal compatibility, allowing secure fitment in standard drill chucks across a wide range of common drilling equipment.

Applications

This 5/16" fractional drill bit is ideally suited for tasks requiring deep penetration or drilling around obstructions. It proves particularly effective in automotive repair for routing new wiring harnesses, installing aftermarket components, or performing intricate work within crowded engine bays and chassis where access is severely restricted. In industrial settings, it is valuable for running cables through structural components, undertaking custom fabrication projects, or executing precise drilling operations in tightly assembled units.

Specifications

• Manufacturer: Hanson
• Model Number: 66720
• Diameter: 5/16 inch
• Overall Length: 6 inches
• Flute Length: 3 1/8 inches
• Material: High-Speed Steel (HSS)
• Point Type: 135-degree split point
• Shank Type: Straight
• Packaging: Carded