Precision Twist Drill 5997980 Wire 4 Hss Jobber Drill Bit

Product Description

The PRECISION TWIST DRILL 5997980 is a jobber-length drill bit sized to wire gauge 4 (0.2090 inches decimal), manufactured from high speed steel with a bright uncoated finish. The bit features a 118-degree standard point angle, a 2-flute regular spiral flute design, and a web-thinned tapered web for reduced thrust during entry. Overall length is 3.75 inches with a 2.5-inch flute length and a straight-cylindrical shank of 0.2090 inches diameter. This is a general-purpose drilling tool suited for machinists, maintenance technicians, and fabricators working in production or job-site environments. It conforms to ANSI standards and belongs to the R10H-R18H series.

This drill bit is designed for general-purpose drilling in steel, cast iron, non-ferrous metals, superalloys, and titanium. The 12xD flute-to-diameter ratio and 2.5-inch maximum drilling depth make it well-suited for through-hole and moderate-depth blind-hole applications in both manual drill press and CNC setups. Sold individually, it fits standard jobber-length toolholding in trade shops, light manufacturing, and field repair contexts.

Key Features

• Wire gauge 4 size at 0.2090 inches decimal diameter for precise hole sizing
• 118-degree standard point angle with web-thinned tapered web to reduce entry thrust
• High speed steel construction handles steel, cast iron, non-ferrous metals, superalloys, and titanium
• Bright uncoated finish suitable for general-purpose use without specialized coolant requirements
• Right-hand cut, 2-flute regular spiral design promotes efficient chip evacuation
• Straight-cylindrical shank fits standard drill chucks without adapter
• Conforms to ANSI specification designation; series R10H-R18H

Compatibility

Designed as an OEM-style general-purpose jobber-length drill bit compatible with standard drill chucks accepting a 0.2090-inch straight-cylindrical shank, including bench drill presses, handheld drills, and CNC drilling setups. No specific model compatibility data was provided in the product data.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or tradespeople familiar with rotary cutting tool safety. Secure the straight-cylindrical shank firmly in the chuck and verify runout before drilling. Always wear appropriate eye protection and secure the workpiece before operation. Do not exceed the maximum drilling depth of 2.5 inches without retracting to clear chips.