Precision Twist Drill 6001446 Aircraft Drill Bit Hss

Product Description

The PRECISION TWIST DRILL 6001446 is a wire gauge size 40 aircraft extension drill bit designed for high-precision drilling in tight-access applications. Built from high speed steel with an oxide finish, this bit operates at 0.098 inches in diameter with a 135-degree split point that is self-centering and eliminates the need for a center punch on most surfaces. The two-flute spiral design with a web-thinned, tapered web configuration reduces walking and cutting resistance. At 6 inches overall length, it reaches deeper than a standard jobber bit while maintaining rigidity. HVAC, aircraft maintenance, and general metalworking trades rely on this geometry for consistent hole quality in sheet metal and structural components.

This drill bit suits applications requiring extended reach in confined spaces, including aircraft fuselage work, HVAC equipment panels, and sheet metal fabrication. The right-hand cutting direction and straight-cylindrical shank make it compatible with standard drill chucks and right-angle drill attachments. The Series 501-6 designation places it within a proven line of extension drills built to NAS 907 Type B standards, making it appropriate for aerospace and precision trade work where dimensional accuracy is critical.

Key Features

• Wire size 40 (0.098 inches) diameter for precision hole sizing in thin-gauge materials
• 135-degree split point is self-centering and reduces walking without a center punch
• 6-inch overall length provides extended reach in deep or restricted access locations
• High speed steel construction with oxide finish for corrosion resistance and lubricity
• Web-thinned tapered web reduces thrust load and improves chip evacuation
• Meets NAS 907 Type B standard for aerospace-grade drilling applications

Compatibility

Designed as an OEM-style replacement and general-purpose extension drill bit for use in standard drill chucks accepting a 0.098-inch straight-cylindrical shank, suitable for hand drills, drill presses, and right-angle attachments used in aircraft, HVAC, and sheet metal trade work.

Installation Notes

Installation of this drill bit is performed by machinists, aircraft maintenance technicians, and sheet metal tradespeople. Secure the straight-cylindrical shank fully in the chuck and verify chuck key is removed before operation. Use appropriate cutting fluid on ferrous materials to extend bit life and improve hole finish. Inspect the split point for chipping before each use, as a damaged point affects centering accuracy and hole quality.