Precision Twist Drill 5999173 Jobber Drill Bit Wire 41

Product Description

The PRECISION TWIST DRILL 5999173 is a jobber length drill bit sized to wire gauge 41 (0.0960 inches), manufactured from high speed steel with a steam oxide coating. It features a 135-degree split point for self-centering starts and reduced walking on hard surfaces. The spiral flute geometry and web-thinned tip reduce cutting torque and improve chip evacuation. At 2.375 inches overall length with a 1.375-inch flute length, this bit fits standard drill chucks and is suited for production drilling, maintenance work, and fabrication tasks performed by machinists, pipefitters, and general metalworking tradespeople.

This drill bit is designed for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. The steam oxide finish provides mild lubricity and corrosion resistance during storage and use. The straight cylindrical shank seats in standard Jacobs-style chucks on hand drills, drill presses, and CNC equipment. It is a general-purpose heavy-duty bit appropriate for both shop and field drilling applications where a small-diameter, wire-gauge size is required.

Key Features

• Wire gauge 41 size: 0.0960 inches diameter for precise small-hole drilling
• 135-degree split point reduces thrust force and self-centers on entry
• High speed steel construction with steam oxide coating for added lubricity
• Web-thinned, tapered web design lowers cutting resistance and improves chip flow
• Regular spiral, 2-flute design with 14xD flute-to-diameter ratio
• Meets ANSI standards and NAS 907 specification

Compatibility

Designed for use in standard straight-shank drill chucks across hand drills, drill presses, and CNC drilling equipment. Part of the PRECISION TWIST DRILL Series R10B, R15B, and R18B family of jobber length drill bits.

Installation Notes

This bit is installed by machinists and tradespeople using standard keyed or keyless chuck equipment. Secure the straight cylindrical shank fully in the chuck before operation and verify concentricity on sensitive work. Use appropriate cutting fluid when drilling stainless steel, superalloys, or titanium to extend tool life. Inspect the cutting edges before each use and replace any bit showing chipping or dulling to avoid workpiece damage.