Precision Twist Drill 6001498 Aircraft Extension Drill

Product Description

The PRECISION TWIST DRILL 6001498 is a high speed steel aircraft extension drill bit designed for deep-reach drilling applications in metal, composite, and structural materials. Built to wire gauge size 3 (0.213 inches decimal), this bit features a 135-degree split point for self-centering entry without a center punch, reducing walkout on hard or curved surfaces. The oxide finish provides basic corrosion resistance and reduces friction during cutting. At 6 inches overall length with a 2.5-inch spiral flute, it gives technicians the reach needed in confined or deep-bore work areas. This is a right-hand cutting, general-purpose bit suited for production and maintenance drilling operations.

This drill bit is intended for use in aerospace fabrication, aircraft maintenance, and structural metalworking where standard-length bits cannot reach the work surface. The extended overall length of 6 inches makes it practical for drilling through thick assemblies, bulkheads, or stacked materials. Licensed aircraft mechanics, maintenance technicians, and precision metalworkers are the primary installers. It conforms to NAS 907 Type B standards, making it appropriate for regulated aerospace and defense work environments.

Key Features

• 135-degree split point enables self-centering entry and reduces the need for a center punch
• Wire size 3 (0.213 inches decimal) straight-cylindrical shank fits standard drill chucks without adapters
• 6-inch overall length with 2.5-inch flute provides extended reach for deep or confined bore locations
• High speed steel construction handles general-purpose metal drilling at standard cutting speeds
• Oxide finish reduces surface friction and provides light corrosion protection
• Conforms to NAS 907 Type B for use in aerospace and regulated structural applications

Compatibility

Designed as an OEM-style general-purpose aircraft extension drill bit compatible with standard drill chucks accepting a 0.213-inch straight-cylindrical shank. Meets NAS 907 Type B dimensional and performance standards.

Installation Notes

This bit is installed and operated by aircraft mechanics, machinists, and qualified metalworking technicians. Always secure the workpiece and confirm chuck grip on the full shank before operating. Follow applicable workplace safety codes and relevant NAS or OEM drilling procedures for the material being worked. Do not exceed the recommended cutting speed for high speed steel bits when drilling hardened alloys, as overheating will degrade the cutting edge.