Hertel 85704492 Jobber Drill Bit 15/64 in Tin Hss

Product Description

The HERTEL 85704492 is a jobber-length twist drill bit designed for general-purpose drilling in metal, wood, and plastic. The bit measures 15/64 inch (0.2344 inch decimal) in diameter with a 3-7/8 inch overall length and a 2-5/8 inch flute length. It is manufactured from high speed steel with a titanium nitride (TiN) coating that extends cutting edge life and reduces friction during operation. The 118-degree standard point angle suits a wide range of common materials. Right-hand spiral flutes evacuate chips efficiently, and the web-thinned, tapered web configuration reduces the thrust required to start a hole. The straight-cylindrical shank seats securely in standard three-jaw drill chucks.

This bit is intended for production and maintenance drilling applications across metalworking, fabrication, HVAC, plumbing, and electrical trades. It fits jobsite and shop environments where a general-purpose twist drill is needed for clearance holes, pilot holes, and through-drilling tasks in ferrous and non-ferrous materials. The 15/64 inch diameter is a common size for bolt clearance and conduit anchor work. It is sold as a single-piece unit.

Key Features

• 15/64 inch (0.2344 inch) diameter with 118-degree standard point angle
• TiN coating improves wear resistance and extends tool life compared to uncoated HSS
• 2-5/8 inch spiral flute length with regular spiral for efficient chip evacuation
• Web-thinned, tapered web reduces drilling thrust and entry resistance
• Straight-cylindrical shank compatible with standard drill chucks
• Right-hand cut, 2-flute configuration for general-purpose use

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard three-jaw keyed or keyless drill chuck accepting a 15/64 inch straight-cylindrical shank.

Installation Notes

Secure the shank fully in a properly sized drill chuck before operation. Use appropriate cutting fluid when drilling hardened or stainless steel to preserve coating and edge life. Ensure the workpiece is firmly clamped before drilling to prevent rotation and bit breakage. Drill press, handheld power drill, or drill-motor applications are all appropriate for this bit style.