Precision Twist Drill 6001296 Aircraft Drill Bit 0.073 in

Product Description

The PRECISION TWIST DRILL 6001296 is a wire gauge size 49 aircraft extension drill bit designed for precision drilling in aerospace and general-purpose metalworking applications. Built from high speed steel with an oxide finish, this bit measures 0.073 inches in diameter and features a 135-degree split point that is self-centering, reducing the need for a center punch and improving positional accuracy on entry. The 1-inch flute length is engineered to a 4xD ratio for efficient chip evacuation. A licensed HVAC tech, machinist, or aircraft maintenance technician working with thin metal or tight-tolerance holes will find this bit well-suited to controlled, repeatable drilling tasks.

This drill bit is built for use in aircraft sheet metal work, precision instrument manufacturing, and general metal fabrication where small-diameter accuracy is critical. The Series 501-6 designation places it within a recognized line of extension-style bits used when standard-length bits cannot reach the work surface. The straight-cylindrical shank provides a secure grip in standard drill chucks and collets. With a right-hand cutting direction and tapered web configuration, it is suited for use in hand drills, drill presses, and CNC equipment handling fine-gauge work.

Key Features

• Wire size 49 (0.073 inches) diameter for tight-tolerance small-hole applications
• 135-degree split point with self-centering geometry reduces walking on entry
• High speed steel construction provides durability across a range of metals
• Oxide finish improves surface hardness and corrosion resistance
• 1-inch spiral flute length at 4xD ratio promotes chip clearance in shallow bores
• Web-thinned, tapered web configuration reduces thrust force during drilling
• Meets NAS 907 Type B standards for aircraft-grade drill bits

Compatibility

Designed as an OEM-style replacement and general-use drill bit for applications requiring NAS 907 Type B compliant wire-gauge extension bits in size 49 (0.073 inches diameter).

Installation Notes

This bit is installed and used by machinists, aircraft maintenance technicians, and metalworking professionals. Secure the straight-cylindrical shank firmly in a compatible drill chuck or collet before use. Always wear appropriate eye protection and ensure the workpiece is properly clamped before drilling. Use cutting fluid on harder metals to extend bit life and maintain hole quality.