Hertel 85703643 Jobber Drill Bit 33/64 Inch Hss

Product Description

The HERTEL 85703643 is a jobber-length twist drill bit designed for general-purpose drilling in metal, wood, and plastics. Built from high speed steel with a bright uncoated finish, this bit features a standard 118-degree split-point geometry and a web-thinned, tapered web configuration that reduces thrust force at entry. The straight-cylindrical shank measures 33/64 inches in diameter and seats securely in standard drill chucks. With an overall length of 6-5/8 inches and a flute length of 4-13/16 inches, it provides the reach typical of jobber-series tooling. Right-hand cut with a regular spiral and two flutes, it is suited to a wide range of shop and field drilling tasks.

This bit is used in general metalworking, light fabrication, HVAC sheet metal work, plumbing rough-in, and electrical trade drilling applications. The jobber-length format is the standard choice for handheld drill drivers, bench drill presses, and magnetic base drills. The 33/64 inch diameter corresponds to 0.5156 inches, placing it in the 0.5000 to 0.6500 inch drill bit size range. Trades that regularly drill anchor holes, conduit knockouts, or pipe hanger holes in steel, aluminum, or composite panels will find this format and size commonly useful on the job.

Key Features

• High speed steel construction rated for general-purpose drilling across metal, wood, and plastics
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• Bright uncoated finish — no coating buildup risk during resharpening
• Regular right-hand spiral with two flutes for efficient chip evacuation
• Straight-cylindrical shank fits standard drill chucks without adapters
• Jobber-length format balances reach and rigidity for handheld and bench use

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard three-jaw drill chuck accepting a straight-cylindrical shank in the 33/64 inch diameter range.

Installation Notes

Use in a drill press, handheld power drill, or magnetic base drill with a properly sized chuck. Secure the workpiece before drilling to prevent rotation. Apply cutting fluid when drilling hardened steel or stainless to extend bit life and reduce heat buildup. Inspect the cutting edges before each use and replace or resharpen if chipping or dulling is observed.