Precision Twist Drill 5998415 Jobber Drill Bit 15/32 in

Product Description

The PRECISION TWIST DRILL 5998415 is a jobber-length drill bit designed for general-purpose drilling in steel, cast iron, non-ferrous metals, superalloys, and titanium. It measures 15/32 inch (0.4688 inch) in diameter with a 118-degree standard point angle and a bright, uncoated high speed steel construction. The two-flute spiral design with a regular spiral type and web-thinned, tapered web configuration promotes efficient chip evacuation and reduced thrust. Straight-cylindrical shank ensures secure seating in standard drill chucks. This bit is used by machinists, maintenance technicians, HVAC fabricators, plumbers, and electricians working with metal materials requiring precise, clean-entry holes.

The 5998415 is suited for production and maintenance drilling applications in industrial, commercial, and light fabrication settings. Its Series R10H-R18H designation places it within a standard jobber-length family intended for use in bench drill presses, hand drills, and CNC drill press setups. Primary workpiece materials include steel, cast iron, non-ferrous metals, and superalloys and titanium, making it a versatile general-purpose bit for multi-material shops and field service technicians.

Key Features

• 15/32 inch (0.4688 inch) diameter with matching straight-cylindrical shank diameter for true concentricity
• 118-degree standard point angle suitable for general metal drilling applications
• High speed steel construction with bright, uncoated finish for standard-duty use
• Two-flute regular spiral design with web-thinned, tapered web for reduced entry force
• Maximum drilling depth of 4-5/16 inches (4.3125 inches) with 5-3/4 inch overall length
• ANSI-standard specification for consistent dimensional compliance

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with standard 3-jaw drill chucks accepting straight-cylindrical shanks in the 15/32 inch size. Suitable for use in hand drills, drill presses, and CNC drilling equipment configured for jobber-length tooling.

Installation Notes

Installation and use should be performed by qualified machinists or tradespeople familiar with rotary cutting tool safety. Ensure the drill chuck is fully tightened and the workpiece is securely fixtured or clamped before operation. Power down the drill and allow the spindle to come to a complete stop before changing or inspecting the bit. Do not exceed the recommended maximum drilling depth of 4-5/16 inches in a single pass without retracting to clear chips.