Hertel 331-208080 Carbide Countersink 3/4 in 100 Deg 1 Flute

Product Description

The HERTEL 331-208080 is a single-flute carbide countersink designed for creating precise angled seats in metal and other hard materials. Built with a 100-degree included angle and a 3/4-inch head diameter, this countersink delivers clean, accurate chamfers for fastener seating in demanding machining applications. The straight-cylindrical shank measures 3/4 inch in diameter, providing secure tool holding in standard drill chucks and collet systems. Carbide construction gives the cutting edge superior hardness and wear resistance compared to high-speed steel, making it a reliable choice for production and maintenance machining environments where consistent performance is required.

This countersink is suited for metalworking shops, tool rooms, and maintenance facilities performing precision drilling and fastener preparation operations. It is commonly used to prep holes for flat-head screws, deburr drilled holes, and create consistent chamfers on ferrous and non-ferrous materials. The single-flute design allows for smooth chip evacuation and reduces chatter, making it appropriate for use in manual drill presses, CNC machining centers, and hand-held pneumatic tools where controlled cutting action is needed.

Key Features

• Carbide construction for extended tool life and hardness in demanding materials
• 100-degree included angle suited for standard flat-head fastener seating
• 3/4-inch head diameter provides a wide chamfer footprint for larger fastener applications
• Single-flute geometry promotes smooth chip flow and reduced chatter
• Straight-cylindrical shank at 3/4 inch for broad compatibility with common tool holders

Compatibility

Designed as an OEM-style single-flute carbide countersink for use in standard straight-shank tool holders and drill chucks accepting a 3/4-inch shank diameter.

Installation Notes

Installation and use of this countersink should be performed by qualified machinists or toolroom technicians familiar with rotary cutting tool safety. Secure the straight-cylindrical shank firmly in a properly rated chuck or collet before operation, and confirm the tool holder is rated for the intended spindle speed. Always power down and de-energize the machine before changing tooling. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain cut quality.