Precision Twist Drill 5999176 Drill Bit Wire 71 Hss

Product Description

The PRECISION TWIST DRILL 5999176 is a jobber-length drill bit sized to wire gauge 71, with a decimal diameter of 0.0260 inches. Manufactured from high-speed steel with a steam oxide coating, it is built for general-purpose drilling in metal and industrial materials. The bit features a 118-degree standard point angle, a regular spiral flute, and a web-thinned tip design that reduces thrust and improves chip evacuation in small-diameter applications. Overall length is 1.25 inches. Licensed machinists, toolroom technicians, and mechanical contractors use this bit for precision hole-making in tight tolerances where small wire-gauge sizing is required.

This drill bit is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. Its compact jobber length and straight cylindrical shank make it a practical choice for standard drill chucks and CNC toolholders in both production and maintenance environments. The 14xD flute-to-diameter ratio supports deeper engagement relative to bit diameter, which is useful when working in confined or precision machined areas. The bit conforms to ANSI standards and falls within the R10-R15-R18 series from PRECISION TWIST DRILL.

Key Features

• Wire gauge 71 sizing at 0.0260 inches decimal diameter for precise small-hole applications
• High-speed steel construction with steam oxide coating for heat and wear resistance
• 118-degree standard point angle with web-thinned tip reduces entry thrust
• Regular spiral, 2-flute design promotes efficient chip removal
• Straight cylindrical shank fits standard drill chucks without adapters
• ANSI-compliant construction; Series R10-R15-R18

Compatibility

Designed for general-purpose drilling in steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. The straight cylindrical shank is compatible with standard drill chucks and collet holders accepting a 0.0260-inch shank diameter.

Installation Notes

This bit is installed and operated by machinists, toolroom technicians, or mechanical tradespeople using standard drill presses, CNC machining centers, or handheld power drills. Secure the shank fully in the chuck and verify concentricity before operation to prevent bit deflection at this small diameter. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life, as dry cutting at high speeds can reduce edge life on high-speed steel tooling. Inspect the bit for chipping or wear before each use; small-diameter bits at this size are susceptible to breakage under side loading.