Hertel 85707370 Jobber Drill Bit No. 15 Tin Hss

Product Description

The HERTEL 85707370 is a jobber-length drill bit sized to wire gauge No. 15, with a decimal diameter of 0.1800 inches. It is constructed from high speed steel (HSS) and finished with a titanium nitride (TiN) coating, which increases surface hardness and extends tool life in repetitive drilling operations. The bit features a standard 118-degree point angle with web thinning for easier penetration on center start. Overall length is 3-3/8 inches. This is a general-purpose bit suited for metalworking, mechanical assembly, and fabrication tasks. It is installed and used by machinists, pipefitters, electricians, and general trade technicians.

This drill bit is appropriate for general-purpose drilling in metal, plastic, and wood substrates in both shop and field environments. The 3-3/8-inch overall length and straight-cylindrical shank make it compatible with standard drill chucks across benchtop drill presses, hand drills, and right-angle drill attachments. Its No. 15 wire gauge size falls within the 0.1500 to 0.2000 inch diameter range, making it a common selection for clearance holes and pilot drilling in light to medium fabrication work.

Key Features

• No. 15 wire gauge size, 0.1800 inch decimal diameter
• TiN coating for improved wear resistance and reduced friction
• 118-degree standard point with web thinning for clean center engagement
• 2-flute spiral flute design with regular spiral type for efficient chip evacuation
• Straight-cylindrical shank fits standard drill chucks without adapters
• Right-hand cut, general-purpose grade for broad material compatibility

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with standard straight-shank drill chucks on hand drills, drill presses, and similar rotary drilling equipment accepting a 0.1800-inch shank diameter.

Installation Notes

Secure the straight-cylindrical shank firmly in the drill chuck before operation. Ensure the workpiece is clamped or fixtured to prevent movement during drilling. Use appropriate cutting fluid when drilling ferrous metals to extend bit life. Inspect the cutting edges and TiN coating for wear before each use and replace when chipping or dulling is observed.