Precision Twist Drill 5999170 Wire 69 Hss Jobber Drill Bit

Product Description

The PRECISION TWIST DRILL 5999170 is a jobber-length drill bit in wire gauge size 69, with a decimal diameter of 0.0292 inches. It is manufactured from high speed steel with a steam oxide coating that improves lubricity and reduces friction during drilling. The 118-degree standard point angle is ground with a web-thinned, tapered web configuration for easier penetration. Overall length is 1.375 inches, with a 0.5-inch spiral flute length and a 0.875-inch straight-cylindrical shank. This bit is designed for right-hand, two-flute spiral cutting and is suited for machinists, tool-and-die technicians, and maintenance mechanics working with precision small-diameter drilling applications.

This drill bit is built for general-purpose drilling in a range of workpiece materials including steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. Its regular spiral flute geometry and 17xD flute-to-diameter ratio make it a practical choice for controlled chip evacuation in deep-relative-to-diameter holes. Typical applications include tapping pre-drill operations, fixture work, and precision hole placement in metal fabrication and maintenance environments. The bit conforms to ANSI standards and belongs to Precision Twist Drill Series R10-R15-R18.

Key Features

• Wire gauge size 69, decimal diameter 0.0292 inches for precision small-hole work
• High speed steel construction with steam oxide coating for reduced friction
• 118-degree standard point angle with web-thinned, tapered web for clean entry
• Right-hand cut, two-flute regular spiral geometry for efficient chip removal
• Straight-cylindrical shank compatible with standard drill chucks
• Conforms to ANSI specification designation; Series R10-R15-R18

Compatibility

Designed as an OEM-style general-purpose jobber drill bit compatible with standard drill chucks and drilling machines that accept straight-cylindrical shanks at 0.0292 inches diameter.

Installation Notes

This bit is installed by machinists or maintenance mechanics using a standard keyed or keyless drill chuck on a drill press, CNC machine, or hand drill. Secure the shank fully in the chuck before operation and verify chuck runout is within acceptable tolerance for small-diameter bits to prevent breakage. No coolant-through capability is present; apply cutting fluid externally when drilling hard materials such as stainless steel or titanium. Replace the bit at first signs of dulling, as small-diameter HSS bits are susceptible to breakage under side load.