Hertel 71206478 Jobber Drill Bit Wire 30 Hss Oxide

Product Description

The HERTEL 71206478 is a jobber length drill bit in wire gauge size 30, with a decimal diameter of 0.1285 inches. It is manufactured from high speed steel and carries an oxide coating for improved wear resistance during general-purpose drilling. The bit features a 118-degree point angle, a standard point type, and a spiral flute with regular spiral geometry. A web-thinned, tapered web configuration reduces cutting resistance at the tip. This bit is intended for use by machinists, maintenance technicians, and fabricators working with metal, wood, or plastics in production or shop environments.

This drill bit is suited for general-purpose drilling applications in light manufacturing, maintenance, and repair operations. The straight-cylindrical shank accepts standard 3-jaw drill chucks on benchtop drill presses, CNC machines, and hand-held power drills. The right-hand cut and spiral flute design provide efficient chip evacuation during through-hole and blind-hole drilling. At 2.75 inches overall length with a flute length of 1.625 inches, it fits typical short-reach drilling setups where a compact footprint is needed.

Key Features

• Wire gauge size 30 with 0.1285-inch decimal diameter for precision small-diameter drilling
• High speed steel construction for durability across a broad range of workpiece materials
• Oxide coating provides surface hardness and reduces friction during cutting
• 118-degree standard point angle with web-thinned, tapered web for reduced entry force
• Right-hand spiral flute promotes efficient chip removal from the bore
• Straight-cylindrical shank compatible with standard 3-jaw chuck systems

Compatibility

Designed as a general-purpose jobber length drill bit for use in standard 3-jaw chucks on drill presses, hand drills, and CNC equipment accepting straight-cylindrical shanks at 0.1285-inch diameter.

Installation Notes

Installation is performed by machinists or maintenance technicians using a standard 3-jaw drill chuck. Ensure the chuck is fully tightened and the workpiece is securely clamped before drilling. Select appropriate spindle speed for the workpiece material to avoid overheating the cutting edge. Do not exceed the bit's rated capacity or apply side loading, which can cause breakage in small-diameter bits.