Precision Twist Drill 5998374 Jobber Drill Bit 29/64

Product Description

The PRECISION TWIST DRILL 5998374 is a jobber-length drill bit designed for general-purpose drilling in a wide range of materials. Built from high speed steel with a bright uncoated finish, it features a standard 118-degree point angle and a two-flute right-hand spiral configuration. The straight-cylindrical shank measures 29/64 inch in diameter, matching the bit diameter for consistent chuck engagement. Web-thinned construction reduces thrust force at the point and improves chip evacuation. This bit is a staple tool for machinists, maintenance techs, pipefitters, and general trade professionals working in metal fabrication and mechanical installation environments.

The 5998374 is suited for drilling into steel, cast iron, non-ferrous metals, superalloys, and titanium. With a flute-to-diameter ratio of 9xD and a maximum drilling depth of 4-3/16 inches, it handles the typical hole depths required in structural and mechanical work. The regular spiral and tapered web configuration support consistent chip flow without coolant-through capability, making it appropriate for dry or externally lubricated drilling setups in shop and field conditions.

Key Features

• High speed steel construction for durability across ferrous and non-ferrous materials
• 118-degree standard point angle with web-thinned tip for reduced entry force
• Right-hand, two-flute spiral design promotes efficient chip removal
• Straight-cylindrical shank for use with standard drill chucks
• Bright uncoated finish suitable for general-purpose applications
• ANSI-compliant construction in Series R10H-R18H

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with standard three-jaw drill chucks accepting a 29/64-inch straight-cylindrical shank, suitable for bench drill presses, hand drills, and magnetic drills used across mechanical and trade applications.

Installation Notes

This drill bit is installed by trade professionals including machinists, pipefitters, and general maintenance technicians. Secure the straight-cylindrical shank firmly in the chuck before operation and verify chuck key removal prior to starting the drill. Apply appropriate cutting fluid when drilling ferrous metals to extend tool life and maintain hole quality. Inspect the point and flutes for wear or damage before each use and replace the bit if chipping or dulling is observed.