Precision Twist Drill 5997523 Jobber Drill Bit 13/64 in

Product Description

The PRECISION TWIST DRILL 5997523 is a 13/64 inch (0.2031 inch) diameter jobber-length drill bit designed for general-purpose drilling across a wide range of materials. Built from high speed steel with a steam oxide coating, it features a 118-degree standard point angle and a right-hand spiral flute configuration. The two-flute, web-thinned design with tapered web reduces thrust during entry, making it well suited for production drilling in steel, stainless steel, cast iron, non-ferrous metals, and superalloys including titanium. Licensed machinists, maintenance technicians, and trade professionals specify this series for everyday hole-making tasks.

This jobber drill is intended for general-purpose drilling applications in both light industrial and trade environments. The straight-cylindrical shank seats directly into standard drill chucks without adapters. With an overall length of 3.625 inches and a flute length of 2.4375 inches, it handles drilling depths up to 2.4375 inches and carries a 12xD flute-by-diameter ratio typical of jobber-length tooling. The R10A-R15A-R18A series is built to ANSI standards and meets NAS 907 specification, making it appropriate for aerospace and precision manufacturing workflows as well.

Key Features

• 13/64 inch (0.2031 inch) diameter with matching 0.2031 inch straight-cylindrical shank
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• High speed steel construction with steam oxide coating for lubricity and light corrosion resistance
• Right-hand cutting, regular spiral, two-flute design for efficient chip evacuation
• Meets ANSI standards and NAS 907 specification designation
• Compatible with primary workpiece material codes P, M, K, N, and S covering steel through titanium

Compatibility

Suitable for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. Straight-cylindrical shank fits standard keyed and keyless drill chucks. Part of the R10A-R15A-R18A series.

Installation Notes

Install the shank fully into a drill chuck and tighten securely before operation. Always power down or de-energize the drill press or handheld tool before changing bits. Use appropriate cutting fluid when drilling stainless steel, superalloys, or hard materials to manage heat buildup and extend tool life. Wear appropriate eye protection and secure the workpiece before drilling.