Precision Twist Drill 6001142 11/64 in Aircraft Drill

Product Description

The PRECISION TWIST DRILL 6001142 is a high speed steel aircraft extension drill bit designed for precision hole-making in metal, aerospace-grade aluminum, and structural materials. It carries an 11/64-inch diameter (0.1719 inches decimal) with a 135-degree split point that is self-centering and web-thinned for reduced thrust and cleaner entry without a center punch. The 2.125-inch spiral flute length sits on a 6-inch overall body, giving technicians the reach needed in confined or deep-clearance applications. An oxide finish improves surface hardness and provides mild corrosion resistance during storage and use. This is a general-purpose, right-hand-cutting bit sold individually.

This drill bit is suited for aircraft maintenance, sheet metal fabrication, and general structural drilling where extended reach is required. The Series 500-6 designation places it in a line built for through-hole work in hard-to-access areas, commonly encountered in aviation maintenance operations, manufacturing assembly, and mechanical service bays. The straight-cylindrical shank seats in standard drill chucks without adapters, making it compatible with corded drills, drill presses, and right-angle drive tools commonly used by aviation and industrial technicians.

Key Features

• 135-degree split point is self-centering and requires no center punch on metal surfaces
• Web-thinned, tapered web construction reduces cutting resistance and heat buildup
• 6-inch overall length provides extended reach for deep or obstructed bore locations
• High speed steel construction maintains edge integrity across repeated use in metal drilling
• Oxide finish adds surface hardness and basic corrosion protection
• Right-hand spiral flutes with 4xD flute-to-diameter ratio for efficient chip evacuation

Compatibility

Meets NAS 907 Type B standards. Designed as a general-purpose aircraft extension drill bit with a straight-cylindrical shank compatible with standard drill chucks in corded and pneumatic drilling equipment.

Installation Notes

This bit is installed and removed by a qualified technician using a standard keyed or keyless drill chuck. Ensure the drill is unpowered and the trigger is locked out before changing bits. Use appropriate cutting fluid when drilling hard alloys or stacked material to extend bit life and prevent work hardening. Maintain consistent feed pressure to avoid bit deflection given the extended shank length.