Precision Twist Drill 5998316 Jobber Drill Bit 43/64

Product Description

The PRECISION TWIST DRILL 5998316 is a jobber-length drill bit designed for general-purpose drilling in metal and hard materials. Manufactured from high speed steel with a bright uncoated finish, it features a 118-degree standard point angle and a regular spiral flute configuration with web thinning for improved chip evacuation and reduced walking at entry. The bit measures 43/64 inch (0.6719 inch) in diameter with a 7.625-inch overall length, making it a standard jobber-length tool sized for production and maintenance drilling. Licensed HVAC technicians, pipefitters, electricians, and general metalworking trades rely on this series for consistent performance across a range of base and alloy metals.

This drill bit is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. It fits applications where a straight-cylindrical shank and standard jobber length are required, including work on mechanical components, pipe flanges, electrical enclosures, and structural steel. The two-flute spiral design with a tapered web handles both light production runs and heavy maintenance drilling scenarios. The Series R10P designation places it in PRECISION TWIST DRILL's general-purpose line built to ANSI standards.

Key Features

• High speed steel construction rated for steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium
• 118-degree standard point angle with web thinning for clean entry and reduced thrust
• Regular spiral, two-flute design with tapered web for efficient chip removal
• Bright uncoated finish — no coating buildup risk when regrinding
• Straight-cylindrical shank at 0.6719 inch diameter fits standard drill chucks without adapters
• Meets ANSI specifications for jobber-length tooling

Compatibility

Designed as a general-purpose jobber-length drill bit in Series R10P-R15P-R18P, suitable for use in standard drill presses, magnetic drills, hand drills, and CNC drilling operations that accept a straight-cylindrical shank at 43/64 inch diameter.

Installation Notes

Install and remove drill bits only after the drill press or power tool has been fully de-energized and the spindle has come to a complete stop. Secure the straight-cylindrical shank firmly in a properly sized chuck and verify runout before beginning a cut. Use appropriate cutting fluid for steel and stainless steel applications to extend tool life and maintain hole quality. Always wear appropriate eye protection and follow shop safety standards when operating drilling equipment.