Value Collection 261017 Aircraft Extension Drill Bit 17/64

Product Description

The VALUE COLLECTION 261017 is a carbide-tipped aircraft extension drill bit designed for drilling in hard-to-reach locations where standard-length bits fall short. Built to a 135-degree split point geometry with a self-centering tip, it starts on contact without walking, reducing the need for a center punch on most materials. The bit measures 17/64 inch (0.2656 inch decimal) in diameter, carries a 2-7/8 inch flute length, and runs to 6 inches overall. The bright/uncoated finish suits general-purpose drilling in steel, aluminum, and composite materials. Installed and used by aviation maintenance technicians, sheet metal workers, and industrial mechanics, this bit handles access drilling in tight or deep structural assemblies.

This aircraft extension drill bit is suited for applications where standard jobber-length bits cannot reach, including airframe structural panels, deep-cavity sheet metal assemblies, and industrial fabrication work. The extended overall length of 6 inches provides the clearance needed to drill through bulkheads, flanges, and recessed structures. The two-flute spiral configuration with tapered web and web-thinned geometry promotes efficient chip evacuation during extended-reach drilling. The straight-cylindrical shank seats securely in standard drill chucks and right-angle drill attachments.

Key Features

• Carbide-tipped cutting edge for durability in hard and abrasive materials
• 135-degree split point with self-centering geometry eliminates walking on entry
• Web-thinned, tapered web construction promotes chip clearance in deep holes
• 6-inch overall length with 2-7/8 inch flute length for extended-reach access drilling
• Straight-cylindrical shank compatible with standard drill chucks and right-angle drivers
• Right-hand cutting direction with two-flute spiral flute configuration
• Meets NAS 907 standards for aircraft drill bit geometry

Compatibility

Designed as a general-purpose aircraft extension drill bit conforming to NAS 907 standards, suitable for use with standard three-jaw drill chucks and right-angle drill attachments accepting a 17/64 inch straight-cylindrical shank.

Installation Notes

This bit is installed and operated by aviation maintenance technicians, sheet metal mechanics, and industrial fabricators working under applicable maintenance and fabrication standards. Secure the straight-cylindrical shank fully in the drill chuck before operation to prevent slippage during extended-reach drilling. Use appropriate cutting fluid or lubricant when drilling ferrous materials to preserve carbide tip life. Inspect the cutting edges before each use and do not force a worn or chipped bit, as carbide tips are brittle and can fracture under lateral load.