Precision Twist Drill 5999005 Jobber Drill Bit 3 Hss

Product Description

The PRECISION TWIST DRILL 5999005 is a jobber-length drill bit in wire gauge size 3, equal to 0.2130 inches in diameter. It is manufactured from high speed steel with a bright uncoated finish and features a standard 118-degree split-point geometry with a web-thinned, tapered web for improved centering and reduced thrust. The straight-cylindrical shank measures 0.2130 inches in diameter and 1.25 inches in length. Overall length is 3.75 inches with a 2.5-inch spiral flute in a regular helix pattern. This bit is intended for use by machinists, maintenance technicians, and metal fabricators working in production or field environments.

This drill bit is suited for right-hand drilling in a wide range of metallic workpiece materials, including steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. The 12xD flute-to-diameter ratio makes it well-matched to jobber-length applications where moderate reach and rigid support are both required. It is a general-purpose tool designed for handheld drill motors, drill presses, and CNC machining centers operating without coolant-through toolholders. Single-piece packaging makes it appropriate for spot replacement or tool-crib stocking.

Key Features

• Wire gauge size 3 (0.2130 inches) with matching straight-cylindrical shank diameter for consistent chuck grip
• 118-degree standard point angle with web-thinned, tapered web for reduced entry force
• High speed steel construction rated for steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium
• Regular spiral flute, 2.5 inches long, providing efficient chip evacuation in through and blind holes
• Bright uncoated finish — no coating thickness to account for in close-tolerance hole sizing
• Meets ANSI standards; Series R10P-R15P-R18P designation

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with standard three-jaw drill chucks and collet systems accepting a 0.2130-inch straight-cylindrical shank. Suitable for use in handheld drills, drill presses, and machining centers without coolant-through capability.

Installation Notes

Secure the shank fully into the chuck before operating and confirm runout is within acceptable limits for the application. Ensure the workpiece is clamped or fixtured to prevent movement during drilling. Maximum drilling depth for this bit is 2.5 inches; do not exceed this depth in a single pass without retracting to clear chips. Follow applicable shop safety standards and machine manufacturer guidelines for spindle speed and feed rate selection when drilling hardened or work-hardening alloys such as stainless steel and superalloys.