Hertel C.E06.0206 Aircraft Extension Drill Bit No. 46

Product Description

The HERTEL C.E06.0206 is a cobalt aircraft extension drill bit designed for drilling in hard and abrasive materials where standard high-speed steel bits fall short. Built to a 135-degree split point geometry with web thinning and a tapered web configuration, this bit self-centers on contact and reduces the thrust required to start a hole. The straw finish indicates heat-treated cobalt steel construction. With a 0.0810-inch diameter and 6-inch overall length, it reaches into confined spaces and deep clearance holes common in aviation, metalworking, and precision fabrication applications. Licensed HVAC, sheet metal, and mechanical tradespeople rely on this geometry for consistent, accurate drilling in tough base metals.

This drill bit is sized as a No. 46 wire gauge bit with a 0.0810-inch cutting diameter and a 1.125-inch spiral flute length. The straight cylindrical shank seats securely in standard drill chucks. The right-hand cutting direction and two-flute spiral configuration provide efficient chip evacuation. It is suited for general-purpose metal drilling in production and maintenance environments where extended reach and cobalt durability are required. Typical applications include drilling through steel, stainless steel, cast iron, and other ferrous alloys in tight or recessed locations.

Key Features

• Cobalt tool material resists heat and wear in hard metal drilling
• 135-degree split point with web thinning enables self-centering and reduces drill thrust
• 6-inch overall length provides extended reach into confined or deep access areas
• Straw finish indicates heat-treated construction for added hardness retention
• Two-flute right-hand spiral configuration promotes efficient chip evacuation
• Meets NAS 907 standard for aircraft-quality drill bit performance

Compatibility

Designed as a general-purpose aircraft extension drill bit compatible with standard drill chucks accepting a 0.0810-inch straight cylindrical shank, suitable for use in handheld drills and drill presses across metalworking and maintenance applications.

Installation Notes

Installation of this drill bit should be performed by qualified machinists, sheet metal workers, or mechanical tradespeople familiar with drill press and handheld drilling operations. Secure the straight shank fully in the chuck before operation and verify the workpiece is clamped to prevent movement. Use appropriate cutting fluid or lubricant when drilling ferrous metals to extend bit life and maintain dimensional accuracy. Inspect the cutting edges before each use and replace the bit if chipping or dulling is observed.