Precision Twist Drill 6001441 Aircraft Drill Bit 50 Hss

Product Description

The PRECISION TWIST DRILL 6001441 is a wire-gauge aircraft extension drill bit designed for deep-reach drilling applications in metal and aerospace-grade materials. Built from high speed steel with an oxide finish, this bit uses a 135-degree split point that is self-centering, reducing walking on entry and eliminating the need for a center punch in most setups. The straight-cylindrical shank measures 0.0700 inches in diameter, matching the drill diameter, and the overall length of 12 inches provides the extension reach required in aircraft, HVAC, and structural fabrication work. Two spiral flutes with a web-thinned, tapered web configuration clear chips efficiently during through-hole drilling passes.

This drill bit is built for general-purpose right-hand cutting in ferrous and non-ferrous metals, with particular suitability for aircraft assembly, sheet metal work, and any trade application requiring extended reach in tight or deep cavities. The 1.0 inch flute length paired with a 12 inch overall length makes this a practical choice for electricians drilling through structural members, HVAC installers working through framing, and fabricators drilling in confined areas where standard-length bits cannot reach.

Key Features

• Wire size 50 (0.0700 inches) diameter for precision small-bore applications
• 135-degree split point with self-centering tip reduces bit walking on entry
• High speed steel construction with oxide finish for corrosion resistance and heat reduction
• 12 inch overall length provides extended reach for deep or confined drilling locations
• Web-thinned tapered web reduces thrust and improves chip evacuation
• Meets NAS 907 Type B standard for aerospace-grade drilling applications

Compatibility

Designed as a general-purpose aircraft extension drill bit in the Series 501-12 line, compatible with any standard drill or drill press fitted to accept a 0.0700 inch straight-cylindrical shank.

Installation Notes

This bit is installed and operated by machinists, aircraft mechanics, electricians, and general trade professionals using handheld drills or drill presses. Always ensure the drill chuck is fully tightened on the straight shank before operation to prevent slippage at extension length. Wear appropriate eye protection when drilling metal, and use cutting fluid on ferrous materials to extend bit life and reduce heat buildup. Inspect the split point for damage before each use, as a chipped tip on a small-diameter bit can cause breakage under load.