Hertel 336-007090 Carbide Countersink 5/8 in 6 Flute

Product Description

The HERTEL 336-007090 is a solid carbide countersink designed for precision chamfering and countersinking operations in metal, composite, and hard material applications. With a 120-degree included angle and 6 flutes, it produces clean, accurate seat profiles for flat-head fasteners and deburring tasks. The 3/8-inch straight-cylindrical shank fits standard drill chucks and collet holders, making it compatible with most drill presses, CNC machines, and hand-held power tools. This tool is suited for machinists, toolmakers, and trade professionals who require consistent, repeatable countersink geometry on production runs or precision assemblies.

This countersink is well suited for light industrial and precision machining environments where fastener seating quality and surface finish matter. Typical applications include countersinking for flat-head screws in metal fabrication, aerospace component prep, and general machine shop work. The 6-flute design reduces chatter and improves surface finish compared to single- or three-flute alternatives, making it a practical choice for both manual and CNC-controlled operations.

Key Features

• 5/8-inch head diameter for standard flat-head fastener seat preparation
• 120-degree included angle matches common flat-head screw geometry
• 6-flute configuration reduces chatter and improves surface finish
• Solid carbide construction provides hardness and wear resistance in demanding materials
• 3/8-inch straight-cylindrical shank fits standard drill chucks and collet systems

Compatibility

Designed as an OEM-style replacement or direct-use countersink for applications requiring a 5/8-inch head diameter, 120-degree included angle, 6-flute carbide tool with a 3/8-inch straight-cylindrical shank.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with rotating cutting tool safety. Secure the shank fully in the chuck or collet before operation and verify the workpiece is clamped to prevent movement. Always wear appropriate eye protection and follow applicable shop safety standards when operating rotary cutting tools. Inspect the cutting edges for wear or chipping before each use.