Hertel 71206254 Jobber Drill Bit No. 8 Hss Oxide

Product Description

The HERTEL 71206254 is a jobber-length drill bit sized to No. 8 wire gauge (0.1990 inch decimal equivalent) and manufactured from high speed steel with an oxide coating for basic lubricity and surface protection. The bit features a 118-degree standard point angle and a two-flute regular spiral configuration, making it a general-purpose choice for drilling through mild steel, aluminum, wood, and similar materials in production or maintenance settings. Overall length is 3-5/8 inches with a flute length of 2-7/16 inches. The straight-cylindrical shank accepts standard three-jaw drill chucks. Installation is performed by machinists, maintenance technicians, and general trade professionals.

This bit is suited for general-purpose drilling operations in light manufacturing, maintenance and repair, and fabrication environments. The No. 8 wire size (0.1990 inch) fits applications where a close-tolerance hole in the 0.1500 to 0.2000 inch range is required. The right-hand cut and regular spiral flute promote efficient chip evacuation in most common workpiece materials. The web-thinned, tapered web design reduces thrust requirements at the point, which is particularly useful in hand-drill or low-torque machine applications.

Key Features

• No. 8 wire gauge size — 0.1990 inch decimal diameter, straight-cylindrical shank of matching diameter
• High speed steel construction for general-purpose drilling in metal, wood, and plastics
• Oxide coating provides baseline corrosion resistance and surface lubricity
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• Two-flute regular spiral, right-hand cut — compatible with standard drill chucks and drill presses
• Coolant-through feature not present — intended for conventional dry or externally lubricated drilling

Compatibility

Designed as a general-purpose jobber-length drill bit for use in standard three-jaw drill chucks, drill presses, and hand drills accepting straight-cylindrical shanks in the 0.1990 inch diameter range.

Installation Notes

Secure the straight-cylindrical shank firmly in a properly sized drill chuck before operation. Ensure the workpiece is clamped or fixtured to prevent movement during drilling. Apply an appropriate cutting fluid or lubricant when drilling ferrous metals to extend bit life. Inspect the cutting edges and point for wear or chipping before each use and replace the bit if geometry is compromised.