Hertel 79892261 Jobber Drill Bit 11/64 in Solid Carbide

Product Description

The HERTEL 79892261 is a solid carbide jobber-length drill bit designed for precision hole-making in demanding materials. Sized at 11/64 inches (0.1719 inches decimal), it carries a standard 118-degree split-point geometry with web thinning for improved centering and reduced thrust. The bright finish leaves the carbide surface uncoated, making it well suited for applications where coating buildup would affect tolerance. With a diameter tolerance held to -0.0005 to 0.0000 inches, this bit delivers consistent, accurate bores. It is a right-hand, two-flute spiral design intended for use in drill presses, CNC machining centers, and hand-held power tools where tight dimensional control is required.

This drill bit is appropriate for production and maintenance work across metalworking, fabrication, and industrial trades. The solid carbide construction, rated at material grade C2, handles harder workpiece materials that would quickly wear high-speed steel tooling. It is a practical choice for machinists, tool-and-die workers, and maintenance technicians drilling ferrous and non-ferrous metals, plastics, and composite materials. The straight-cylindrical shank seats securely in standard drill chucks and collet holders without modification.

Key Features

• Solid carbide construction, material grade C2, for extended tool life in hard materials
• 118-degree standard point angle with web thinning for accurate self-starting entry
• Bright (uncoated) finish preserves sharp edge geometry and suits close-tolerance applications
• Diameter tolerance of -0.0005 to 0.0000 inches for consistent bore sizing
• Two-flute regular spiral flute design promotes efficient chip evacuation
• Straight-cylindrical shank fits standard drill chucks and collet holders

Compatibility

Designed as a jobber-length replacement drill bit for use in standard drill chucks and collet systems accepting an 11/64-inch straight-cylindrical shank across drill presses, CNC machining centers, and portable power drills.

Installation Notes

Installation and use should be performed by a qualified machinist or maintenance technician familiar with rotating cutting tools. Secure the shank fully in the chuck or collet and verify runout before operation. Always power down and de-energize the machine before changing tooling. Use appropriate cutting fluid or coolant as required by the workpiece material to manage heat, noting that this bit does not have internal coolant-through capability.