Hertel 84578236 Jobber Drill Bit Wire 68 Hss 118 Degree

Product Description

The HERTEL 84578236 is a jobber-length drill bit in wire gauge size 68, equivalent to 0.0310 inches in decimal diameter. Built from high speed steel with a bright uncoated finish, this bit is designed for general-purpose drilling in metal, plastic, and wood materials. It features a standard 118-degree point angle with web thinning on a tapered web configuration, which reduces the thrust required to start a hole. The straight-cylindrical shank seats directly in standard drill chucks without adapters. At 1.375 inches overall length with a 0.5-inch flute length, this bit suits close-quarter work and benchtop drilling machines alike.

This bit is intended for general-purpose production and maintenance drilling where wire-gauge size precision is required. Wire size 68 falls within the 0.0000 to 0.0500 inch range, making it appropriate for tapping pilots, instrumentation holes, light-gauge sheet metal, and precision assembly work. It is commonly used by machinists, maintenance technicians, and electricians requiring small-diameter through-holes in tight spaces. The two-flute spiral design with regular spiral type provides efficient chip evacuation during through-hole drilling operations.

Key Features

• Wire gauge size 68 — 0.0310 inch decimal diameter for precision small-bore applications
• High speed steel construction suited for general-purpose drilling across common materials
• 118-degree standard point angle with web thinning for reduced entry thrust
• Tapered web configuration with regular spiral flute for consistent chip evacuation
• Straight-cylindrical shank compatible with standard drill chucks
• Bright uncoated finish — no coating buildup interference in tight-tolerance holes

Compatibility

Designed as a general-purpose jobber-length drill bit for use in standard drill chucks accepting a 0.0310-inch straight-cylindrical shank. Suitable for benchtop drill presses, hand drills, and CNC drilling applications within the 0.0000 to 0.0500 inch drill bit size range.

Installation Notes

Install and remove this bit with the drill or press fully powered down and the chuck key removed from the chuck. Secure the straight shank fully into the chuck before operation to prevent slippage and bit breakage at this small diameter. Small-diameter high speed steel bits are susceptible to breakage under side load — use a drill press or guided fixture when hole location tolerance is critical. Cutting fluid is recommended when drilling ferrous metals to extend bit life.