Hertel C.E05.0522 Aircraft Extension Drill Bit 135 Pt

Product Description

The HERTEL C.E05.0522 is a wire gauge size 5 aircraft extension drill bit built for deep-reach drilling applications where a standard-length bit cannot access the work zone. Manufactured from high-speed steel with an oxide finish, it features a 135-degree split point that is self-centering and reduces the need for a center punch. The bit has a spiral flute with a web-thinned, tapered web configuration for improved chip evacuation. At 12 inches overall length and 0.2055 inches in diameter, it is sized for precision work in structural, aerospace, and general metalworking environments. Licensed HVAC, plumbing, and mechanical contractors often keep aircraft bits on hand for access drilling through framing and tight assemblies.

This bit is suited for right-hand cutting in ferrous and non-ferrous metals, plastics, and composite materials in residential and commercial construction or fabrication settings. The 12-inch overall length makes it effective for drilling through studs, joists, and sheet metal assemblies where standard-length bits cannot reach. The 2.5-inch flute length provides adequate chip clearance during extended-reach operations. It meets NAS 907 standards, making it appropriate for general-purpose aerospace and industrial drilling applications.

Key Features

• Wire gauge size 5 (0.2055 inches) straight-cylindrical shank for standard chuck compatibility
• 135-degree split point with self-centering geometry reduces walking on hard surfaces
• Web-thinned tapered web reduces cutting resistance and improves penetration rate
• High-speed steel construction with oxide finish for corrosion resistance and reduced friction
• 12-inch overall length for deep-reach and extended-access drilling
• Meets NAS 907 standard for general-purpose aerospace and industrial use

Compatibility

Designed as a general-purpose aircraft extension drill bit compatible with standard 3-jaw drill chucks accepting a 0.2055-inch straight-cylindrical shank. Meets NAS 907 standards for aerospace and industrial drilling applications.

Installation Notes

Installation and use of this bit should be performed by qualified tradespeople familiar with metal drilling practices. Ensure the drill chuck is fully tightened before operation and that the workpiece is secured to prevent movement. When drilling through structural members, verify that no wiring, piping, or conduit is present behind the work surface before proceeding. Use appropriate cutting fluid when drilling ferrous metals to extend bit life and reduce heat buildup.