Hertel 16691784 Jobber Drill Bit 15/64 in Solid Carbide Tin

Product Description

The HERTEL 16691784 is a jobber-length drill bit designed for precision drilling in ferrous and non-ferrous metals, alloys, and hard materials. Built from solid carbide C2-grade material and finished with a Titanium Nitride (TiN) coating, this bit delivers extended tool life and reduced heat buildup compared to high-speed steel alternatives. The 118-degree standard point angle and web-thinned, tapered web configuration improve penetration and reduce walking at entry. With a 15/64-inch (0.2344 inch decimal) diameter, a 3-1/4-inch overall length, and a maximum drilling depth of 3-1/16 inches, it suits tight-tolerance production and maintenance drilling tasks. Machinists, toolroom technicians, and maintenance professionals use this bit in CNC and manual drill press applications.

The HERTEL 16691784 fits applications requiring a straight-cylindrical shank in the 0.2000 to 0.2500 inch decimal size range. The 2-flute spiral regular configuration with right-hand cut suits standard drilling operations in metal fabrication, equipment repair, and industrial maintenance environments. The bit does not include coolant-through capability, making it suited for conventional wet or dry drilling setups where external coolant is applied or where cutting speeds are managed to control heat. Series 450 designation identifies the product family within the HERTEL carbide jobber line.

Key Features

• Solid carbide C2-grade construction for rigidity and wear resistance in hard materials
• Titanium Nitride (TiN) coating reduces friction and extends cutting edge life
• 118-degree standard point angle with web-thinned, tapered web for clean entry
• Right-hand cut, 2-flute spiral regular geometry for efficient chip evacuation
• Straight-cylindrical shank fits standard drill chucks without adapter
• Diameter tolerance of -0.0005 to 0.0000 inches supports close-tolerance hole requirements

Compatibility

Designed as an OEM-style replacement and standard jobber-length drill bit for use in drill presses, CNC machining centers, and handheld drills accepting a straight-cylindrical shank in the 0.2000 to 0.2500 inch decimal diameter range, Series 450.

Installation Notes

Installation and use should be performed by a qualified machinist or maintenance technician familiar with cutting tool safety practices. Secure the shank fully in the chuck and verify runout before operation. Follow machine manufacturer guidelines for spindle speed and feed rate based on workpiece material. Do not exceed the maximum drilling depth of 3-1/16 inches, and apply cutting fluid as appropriate for the base material to preserve coating and edge life.