Hertel C.E07.0386 Aircraft Drill Bit 24 Wire Cobalt

Product Description

The HERTEL C.E07.0386 is a cobalt aircraft extension drill bit designed for drilling in hard metals, high-strength alloys, and aerospace-grade materials. Built to NAS 907 standards, it features a 135-degree split point that self-centers on entry and reduces walking on curved or contoured surfaces. The 12-inch overall length provides the extended reach required for drilling through deep assemblies, structural panels, and tight airframe access points. The straw finish is a heat-treatment indicator common on cobalt tooling and provides light corrosion resistance. This bit is sized at wire gauge 24, which equals 0.152 inches in decimal, and is used by aerospace technicians, aircraft maintenance mechanics, and precision machinists.

This drill bit is suited for production and maintenance drilling in aerospace, defense, and industrial environments where extended reach and heat resistance are critical. The 2-inch spiral flute length efficiently clears chips during deep-hole operations. Right-hand cutting direction is standard for conventional drill press and hand-drill applications. The straight cylindrical shank fits standard drill chucks without modification, making it compatible with common pneumatic and electric drill equipment used in aircraft assembly and overhaul work.

Key Features

• Cobalt tool material for heat resistance and durability in hard and abrasive materials
• 135-degree split point with self-centering geometry reduces walk and eliminates pilot holes
• Web-thinned, tapered web configuration improves cutting efficiency and reduces thrust
• 12-inch overall length provides extended reach for deep-assembly and structural applications
• Spiral flute design promotes efficient chip evacuation during drilling
• Meets NAS 907 standard for aircraft extension drill bits

Compatibility

Designed as an NAS 907-compliant aircraft extension drill bit for use in aerospace, defense, and general industrial drilling applications requiring wire gauge 24 sizing at 0.152 inches decimal diameter.

Installation Notes

Installation of this bit should be performed by qualified machinists, aerospace mechanics, or maintenance technicians familiar with rotary cutting tools. Secure the straight shank fully in the drill chuck and verify concentricity before beginning any drilling operation. Always use appropriate cutting fluid or lubrication when drilling hard metals to extend tool life and manage heat buildup. Power down and de-energize all equipment before changing or inspecting tooling.