Hertel 84579689 Jobber Drill Bit 13/64 in Tin Hss

Product Description

The HERTEL 84579689 is a 13/64 inch (0.2031 inch) diameter jobber-length drill bit designed for general-purpose holemaking in metal, wood, and composite materials. It is constructed from high speed steel (HSS) with a titanium nitride (TiN) coating that extends tool life by reducing friction and heat buildup at the cutting edge. The 135-degree split point geometry allows the bit to self-center on contact, reducing the need for a center punch on most workpieces. With a web-thinned, tapered web configuration and regular spiral flute, it evacuates chips efficiently during through-hole and blind-hole drilling operations. This bit is sold individually and is suited for use in hand drills, drill presses, and CNC drilling setups.

This jobber drill bit is intended for holemaking applications across maintenance, repair, fabrication, and light manufacturing environments. The straight-cylindrical shank fits standard three-jaw chucks without modification. Its heavy-duty grade designation and NAS specification make it appropriate for professionals requiring consistent performance in repetitive drilling tasks. Typical users include machinists, pipefitters, electricians, HVAC technicians, and general maintenance tradespeople who need a reliable, single-use or limited-run drill bit at a standard jobber length.

Key Features

• 13/64 inch (0.2031 inch) diameter with straight-cylindrical shank for universal chuck compatibility
• 135-degree split point geometry for self-centering without a center punch
• TiN coating reduces friction and extends cutting edge life
• Web-thinned tapered web reduces thrust force and improves chip evacuation
• 2-flute regular spiral design clears chips efficiently in both ferrous and non-ferrous materials
• NAS specification designation confirms dimensional and performance compliance

Compatibility

Designed as a standard jobber-length drill bit with a straight-cylindrical shank compatible with any three-jaw drill chuck accepting a 13/64 inch shank diameter.

Installation Notes

Installation is performed by tradespeople and machinists using standard three-jaw chucks on hand drills, drill presses, or CNC equipment. Secure the shank fully in the chuck and verify concentricity before beginning a cut. Use appropriate cutting fluid for ferrous metals to manage heat, even though the TiN coating provides some dry-cutting capability. Inspect the cutting edges before each use and replace if chipping or dulling is evident.