Precision Twist Drill 6001457 Aircraft Extension Drill Bit

Product Description

The PRECISION TWIST DRILL 6001457 is a high speed steel aircraft extension drill bit designed for deep-reach drilling in metal and aerospace-grade materials. Built to Series 501-6 specifications, it features a 135-degree split point for self-centering entry without a center punch and a web-thinned, tapered web configuration that reduces thrust and improves chip evacuation. The drill carries an oxide finish for basic surface protection during general purpose cutting operations. At 6 inches overall length with a 2.3125-inch spiral flute, it gives technicians the reach needed for confined or extended drilling access common in aircraft and structural fabrication work.

This drill bit is suited for use in aerospace maintenance, aircraft assembly, and structural metalworking applications where standard-length bits cannot reach. The 0.189-inch diameter corresponds to wire gauge size No. 12. Right-hand cutting direction makes it compatible with conventional drill presses, hand drills, and pneumatic drilling equipment used by aviation maintenance technicians and metalworking fabricators. It conforms to NAS 907 Type B standards, making it appropriate for aviation MRO and certified fabrication environments.

Key Features

• 135-degree split point for self-centering start with no pilot hole required
• Web-thinned tapered web reduces drilling thrust and improves chip flow
• 6-inch overall length provides extended reach for confined access drilling
• High speed steel construction handles general purpose metal cutting
• Oxide finish for basic surface protection during cutting operations
• Meets NAS 907 Type B standard for aerospace application compliance

Compatibility

Designed as an OEM-style replacement and general-use aircraft extension drill bit suitable for standard 0.189-inch straight-cylindrical shank chucks used in aviation maintenance, aerospace fabrication, and structural metalworking applications.

Installation Notes

Installation and use of this drill bit should be performed by qualified aviation maintenance technicians, machinists, or metalworking tradespeople familiar with proper drilling technique for high speed steel tooling. Ensure the drill press, hand drill, or pneumatic tool is fully stopped and de-energized before changing bits. Verify chuck size is compatible with the 0.189-inch straight-cylindrical shank before securing. Follow applicable workplace safety standards and any relevant aviation maintenance documentation when drilling structural components.