Precision Twist Drill 6001492 Wire 27 Hss Drill Bit

Product Description

The PRECISION TWIST DRILL 6001492 is a high speed steel aircraft extension drill bit designed for precision drilling in metal, aerospace, and general-purpose applications. Built to Series 501-6 specifications, it features a 135-degree split point that is self-centering and web-thinned, reducing walking and cutting thrust on entry. The straight-cylindrical shank measures 0.144 inches in diameter, matching the wire size 27 drill diameter. Right-hand spiral flutes with a tapered web configuration clear chips efficiently during operation. At 0.04 pounds, this is a compact, single-piece bit suited for hand-held or machine-mounted extension drilling where reach or angle access is needed.

This drill bit is used in aircraft assembly, sheet metal work, and general machining where a wire gauge size 27 hole is required. The 6-inch overall length and 1.875-inch flute length make it well suited for reaching into confined spaces or drilling through stacked materials. It is commonly installed by aviation maintenance technicians, machinists, and HVAC or fabrication professionals working with thin-gauge metal. The oxide finish provides baseline corrosion resistance and reduces friction during cutting.

Key Features

• 135-degree split point with self-centering geometry reduces drill walk on entry
• Web-thinned, tapered web configuration lowers cutting thrust and improves chip evacuation
• High speed steel construction handles general-purpose metal drilling without specialized coatings
• Oxide finish provides light corrosion resistance and reduces heat buildup
• Straight-cylindrical shank at 0.144 inches fits standard chucks and extension holders
• Meets NAS 907 Type B standards for aerospace-grade drilling applications

Compatibility

Designed as an OEM-style replacement and general-use drill bit for applications requiring a wire size 27 straight-shank drill in Series 501-6 aircraft extension configurations meeting NAS 907 Type B standards.

Installation Notes

Installation of this drill bit is performed by machinists, aviation maintenance technicians, or trade professionals operating drill presses, hand drills, or CNC machines. Secure the straight-cylindrical shank firmly in a compatible chuck before operation and verify chuck runout is within acceptable limits. Always wear appropriate eye protection and secure the workpiece before drilling. Disconnect or de-energize any powered equipment before changing bits.