Precision Twist Drill 5998312 Wire 17 Hss Jobber Drill Bit

Product Description

The PRECISION TWIST DRILL 5998312 is a jobber length drill bit sized to wire gauge 17 (0.1730 inches decimal), made from high speed steel with a steam oxide coating. It features a 118-degree standard point angle and a two-flute regular spiral design with a web-thinned, tapered web for improved chip evacuation and reduced thrust. Overall length is 3.375 inches with a flute length of 2.1875 inches and a straight-cylindrical shank. Licensed HVAC technicians, machinists, plumbers, and general trade professionals use this bit for precision drilling in metal fabrication and mechanical assembly applications.

This drill bit is suited for general purpose drilling in a range of metallic workpiece materials. Applicable material categories include steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. The steam oxide finish provides a measure of lubricity and corrosion resistance during operation. The straight-cylindrical shank seats in standard three-jaw chucks on drill presses, hand drills, and magnetic base drills. It conforms to ANSI standards and belongs to Series R10-R15-R18, positioning it as a reliable general purpose option across trade and industrial settings.

Key Features

• Wire gauge 17 size, 0.1730 inches decimal diameter, for precise hole sizing
• 118-degree standard point angle with web-thinned tapered web for reduced entry force
• High speed steel construction for durability across steel, stainless steel, cast iron, and non-ferrous metals
• Steam oxide coating improves lubricity and provides light corrosion resistance
• Two-flute regular spiral design with 13xD flute-to-diameter ratio for efficient chip removal
• ANSI-compliant, straight-cylindrical shank fits standard drill chucks without modification

Compatibility

Designed as a general purpose jobber length drill bit compatible with any standard three-jaw chuck accepting a 0.1730-inch straight-cylindrical shank. Suitable for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium workpieces per Series R10-R15-R18 specifications.

Installation Notes

This bit is installed by machinists, maintenance technicians, and trade professionals using standard drill presses or portable hand drills. Secure the straight shank firmly in the chuck before operation and confirm chuck key removal before starting the machine. Apply cutting fluid when drilling stainless steel, superalloys, or hard materials to extend tool life and reduce heat buildup. Inspect the cutting edges for wear before each use and replace the bit if chipping or dulling is observed.