Precision Twist Drill 6001167 Aircraft Extension Drill Bit

Product Description

The PRECISION TWIST DRILL 6001167 is a 17/64-inch high speed steel aircraft extension drill bit designed for deep-reach drilling applications where standard-length bits cannot access the work area. Built to Series 500-6 specifications and compliant with NAS 907 Type B standards, this bit features a 135-degree split point for self-centering starts without a center punch. The oxide finish provides corrosion resistance and reduces friction during cutting. At 6 inches overall length with a 2.875-inch flute length, it gives tradespeople the reach needed in tight or recessed locations. Right-hand spiral flutes with a tapered web and web-thinned geometry promote chip evacuation and reduce feed force.

This drill bit is suited for metalworking applications in aerospace, HVAC fabrication, mechanical contracting, and general industrial environments. The extended length makes it practical for drilling through structural members, sheet metal stacks, and assemblies where a standard jobber-length bit would bottom out before reaching depth. It is a general-purpose tool appropriate for use in drill presses and hand-held electric drills by machinists, sheet metal workers, and maintenance technicians.

Key Features

• 135-degree split point is self-centering, eliminating the need for a center punch on most metals
• Extended 6-inch overall length provides reach into deep or recessed work areas
• Web-thinned, tapered web construction reduces cutting force and improves chip clearance
• High speed steel construction withstands heat generated during metal drilling
• Oxide finish reduces friction and offers light corrosion resistance
• NAS 907 Type B compliant for use in aerospace and precision metalworking applications

Compatibility

Designed as a general-purpose aircraft extension drill bit compatible with standard straight-cylindrical shank drill chucks. Meets NAS 907 Type B standards for aerospace and precision metalworking applications.

Installation Notes

Install in a drill press or hand-held drill with a chuck rated for the 17/64-inch straight-cylindrical shank. Secure the workpiece firmly before drilling to prevent movement. Use appropriate cutting fluid for the material being drilled to extend bit life and improve finish quality. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.