Hertel 334-208100 Carbide Countersink 4 Flute 3/4 in

Product Description

The HERTEL 334-208100 is a solid carbide countersink designed for producing conical seat holes in metal workpieces. It features a 120-degree included angle and a 3/4-inch head diameter, making it suited for countersinking fastener seats in structural and machined components. The straight-cylindrical shank measures 3/4 inch in diameter for secure chuck or collet retention. With 4 flutes, it provides balanced cutting action and consistent chip evacuation during operation. This tool is intended for use by machinists, toolmakers, and metalworking tradespeople working on CNC or manual machines.

The 334-208100 is applicable in general metalworking environments where countersunk fastener holes are required in ferrous and non-ferrous materials. Its carbide construction supports use in harder materials and higher-speed applications where high-speed steel tools would wear prematurely. Typical installations include production machining, maintenance shops, and fabrication environments requiring precise, repeatable countersink geometry.

Key Features

• 120-degree included angle for standard countersunk fastener seat preparation
• 3/4-inch head diameter provides adequate cutting coverage for common fastener sizes
• Solid carbide construction for extended tool life in hard and abrasive materials
• 4-flute design promotes smooth cutting action and efficient chip removal
• Straight-cylindrical shank for compatibility with standard drill chucks and collet holders

Compatibility

Designed as an OEM-style replacement or direct-use carbide countersink for metalworking machines equipped with standard straight-shank toolholders accepting a 3/4-inch shank diameter.

Installation Notes

This countersink is installed by machinists in drill presses, milling machines, or CNC machining centers with appropriate straight-shank toolholding. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Verify shank seating and chuck or collet tightness before initiating a cut. Use appropriate cutting speeds and feeds for the workpiece material to avoid tool damage or premature wear.