Hertel 71206759 Jobber Drill Bit Wire 58 Hss Oxide

Product Description

The HERTEL 71206759 is a jobber-length twist drill bit sized to wire gauge 58, with a decimal diameter of 0.0420 inches. It is manufactured from high speed steel with an oxide coating that provides basic lubricity and corrosion resistance during drilling operations. The bit features a 118-degree standard point angle, a two-flute regular spiral configuration, and a straight-cylindrical shank of the same diameter as the cutting end. Overall length is 1.625 inches with a flute length of 0.6875 inches. The web is thinned and tapered for improved penetration in small-diameter applications. This bit is intended for use by machinists, maintenance technicians, and general fabrication trades working with ferrous and non-ferrous materials.

This drill bit is rated for general-purpose drilling in a wide range of materials including mild steel, aluminum, brass, and plastics. Its wire gauge 58 sizing makes it well suited for pilot holes, clearance holes for small fasteners, and precision layout work where tight dimensional tolerances are required. The right-hand cut and standard spiral flute design provide reliable chip evacuation in both hand-held and drill-press applications. This bit does not support coolant-through delivery.

Key Features

• Wire gauge 58 sizing at 0.0420 inches decimal diameter for precision small-hole work
• High speed steel construction with oxide coating for basic wear and corrosion resistance
• 118-degree standard point angle with web-thinned, tapered web for improved penetration
• Two-flute regular spiral design promotes consistent chip evacuation
• Straight-cylindrical shank compatible with standard drill chucks
• Right-hand cut for use in conventional drilling operations

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any drill press, hand drill, or CNC drilling setup accepting a straight-cylindrical shank of 0.0420 inches diameter.

Installation Notes

Installation is performed by machinists and maintenance technicians. Secure the straight shank firmly in the drill chuck and verify concentricity before operation. Ensure the workpiece is clamped or fixtured to prevent movement during drilling. Use appropriate cutting fluid for ferrous materials to extend tool life, even though coolant-through is not supported by this bit.