Hertel C.E06.0595 Aircraft Extension Drill Bit 15/64

Product Description

The HERTEL C.E06.0595 is a cobalt aircraft extension drill bit designed for drilling in hard and abrasive materials where standard-length bits cannot reach. Built with a 135-degree split point, it self-centers on contact and eliminates the need for a center punch in most applications. The straw finish indicates heat treatment consistent with cobalt tooling. At 6 inches overall length with a 2.625-inch spiral flute, this bit handles deep-reach drilling tasks in metal fabrication, aerospace maintenance, and structural assembly work. It is sized at 15/64 inch (0.2344 inch decimal) and conforms to NAS 907 standards.

This bit is suited for professional metalworking applications requiring extended reach, including airframe repair, structural steel work, and sheet metal assembly. The right-hand cutting direction and two-flute spiral configuration support efficient chip evacuation in ferrous and non-ferrous metals. It is commonly used by aircraft maintenance technicians, millwrights, and fabricators working in tight or deep-clearance drilling scenarios where standard-length bits are insufficient.

Key Features

• Cobalt construction with straw finish for heat resistance and durability in hard materials
• 135-degree split point with web thinning for self-centering and reduced thrust
• 6-inch overall length provides extended reach in confined or deep-access locations
• Tapered web configuration with 2-flute spiral flute for efficient chip removal
• Straight cylindrical shank fits standard drill chucks without adapters
• Meets NAS 907 standards for aircraft-grade tooling

Compatibility

Designed as a general-purpose aircraft extension drill bit compatible with standard straight-shank drill chucks; conforms to NAS 907 tooling standards for use in aerospace and structural metalworking applications.

Installation Notes

Installation and use should be performed by qualified machinists, aircraft maintenance technicians, or experienced metalworkers. Ensure the drill chuck is fully tightened and the workpiece is securely clamped before drilling. Power down and de-energize any associated equipment before bit changes. Use appropriate cutting fluid for cobalt tooling when drilling hardened or stainless steel to extend bit life and prevent work hardening.