Hertel 336-207060 Countersink 5/8 in 82 Deg 6 Flute Carbide

Product Description

The HERTEL 336-207060 is a solid carbide countersink designed for producing accurate, clean-entry chamfers in metal, composite, and rigid material workpieces. With a 5/8-inch head diameter and an 82-degree included angle, this tool seats flat-head fasteners flush or below the surface in applications where precise angular consistency is required. The six-flute geometry distributes cutting load evenly, reduces chatter, and produces a smooth finish at the countersink seat. It is used in machine shop, aerospace, and fabrication environments by machinists and tool-and-die professionals operating drill presses, CNC machining centers, or manual mills.

This countersink is suited for production and maintenance machining operations where an 82-degree seating angle is specified. The 5/8-inch straight cylindrical shank allows direct mounting in standard drill chucks, collet holders, and toolholders without the need for adapters. It is a common choice when preparing holes to accept 82-degree flat-head screws in aluminum, mild steel, and similar materials across both job-shop and production-floor settings.

Key Features

• 5/8-inch head diameter for medium to larger fastener seating applications
• 82-degree included angle matches standard 82-degree flat-head fastener geometry
• Six-flute design reduces chatter and improves surface finish at the countersink seat
• Solid carbide construction provides hardness and wear resistance for extended tool life
• 5/8-inch straight cylindrical shank for compatibility with standard chucks and collet systems

Compatibility

Designed for use with standard drill chucks, ER collet holders, and toolholders accepting a 5/8-inch straight cylindrical shank. Appropriate for 82-degree flat-head fastener applications across a range of workpiece materials.

Installation Notes

A licensed machinist or trained tool operator should mount this countersink in a properly sized chuck or collet and confirm secure clamping before operation. Power down the machine and lock out energy sources before changing tooling. Run at manufacturer-recommended speeds for the workpiece material and tool diameter. Inspect the cutting flutes for wear or chipping before each use and replace the tool if damage is present.