Hertel C.E06.03571 Aircraft Extension Drill Bit 9/64

Product Description

The HERTEL C.E06.03571 is a cobalt aircraft extension drill bit designed for drilling in tough materials where standard-length bits cannot reach. The 9/64 inch (0.1406 inch decimal) diameter bit features a 135-degree split point for self-centering starts without a center punch. Its straw finish cobalt construction handles elevated heat generated during extended drilling operations in hard metals, alloys, and aerospace-grade materials. The 6 inch overall length and straight cylindrical shank allow use in standard drill chucks and drill motors common on the shop floor or in the field.

This drill bit is built for aircraft maintenance, fabrication, and structural drilling applications where extra reach is required. The 1.75 inch spiral flute length and right-hand cutting direction suit it for through-hole drilling in sheet metal, structural steel, aluminum, and hard alloys. It is appropriate for use by aerospace maintenance technicians, metalworking machinists, and industrial fabricators working to NAS 907 standards. The web-thinned, tapered web configuration reduces thrust and improves chip evacuation in deep or extended-reach drilling situations.

Key Features

• 135-degree split point for self-centering starts, no pilot hole required
• Cobalt tool material with straw finish for heat resistance in hard metals
• 6 inch overall length provides extended reach over standard jobber-length bits
• Web-thinned tapered web reduces drilling thrust and improves chip clearing
• Right-hand spiral flute with 1.75 inch flute length for efficient chip evacuation
• Meets NAS 907 standard for aircraft drilling applications

Compatibility

Designed for use in standard straight-cylindrical shank drill chucks; suited for aircraft maintenance, aerospace fabrication, and general-purpose metalworking drilling operations conforming to NAS 907.

Installation Notes

Install into a compatible drill chuck and verify chuck tightening before operation. Secure the workpiece firmly before drilling to prevent movement. Use appropriate cutting fluid or lubricant when drilling hard alloys to extend bit life and manage heat. Wear appropriate PPE including eye protection when operating rotary cutting tools.