Hertel C.E07.0516 Aircraft Extension Drill Bit 13/64 in

Product Description

The HERTEL C.E07.0516 is a cobalt aircraft extension drill bit engineered for deep-reach drilling applications where standard-length bits cannot access the work zone. At 12 inches overall length with a 13/64 inch (0.2031 inch) diameter, this bit drives through hard metals and alloys common in aviation, HVAC fabrication, and industrial maintenance work. The 135-degree split point is self-centering and reduces walking on entry, while the web-thinned, tapered web construction lowers thrust requirements. A straw finish indicates the cobalt content and heat treatment appropriate for demanding materials. This bit is installed by machinists, aircraft mechanics, and skilled tradespeople using standard drill equipment.

This drill bit is suited for applications requiring extended reach into confined spaces or deep stock — including airframe repair, structural metal fabrication, and mechanical assembly work. The 2-7/16 inch spiral flute length provides efficient chip evacuation during deep-hole drilling. Its straight cylindrical shank accepts standard drill chucks without adapters. The right-hand cutting direction is compatible with all conventional drill presses, hand drills, and right-angle drill attachments used across trade and aerospace maintenance environments.

Key Features

• Cobalt tool material with straw finish for heat resistance and durability in hard metals
• 135-degree split point is self-centering and reduces drill walk on entry
• 12 inch overall length provides extended reach into confined or deep work areas
• Web-thinned tapered web reduces required thrust and operator fatigue
• Spiral flute design with 2-7/16 inch flute length promotes chip clearance in deep holes
• Meets NAS 907 standard for aircraft-grade tooling

Compatibility

Designed for use in standard straight-cylindrical drill chucks across conventional drill presses, hand drills, and right-angle drill equipment requiring a 13/64 inch diameter bit.

Installation Notes

This bit is intended for use by qualified machinists, aircraft mechanics, and trade professionals familiar with metal drilling procedures. Secure the workpiece firmly before drilling and confirm the drill chuck is properly tightened on the straight shank before operation. Use appropriate cutting fluid or coolant for the material being drilled to extend bit life and maintain cut quality. Follow applicable workplace safety standards and manufacturer guidelines for drill speed selection based on material type and bit diameter.