Hertel 331-207060 Countersink 5/8 in 82 Degree Carbide

Product Description

The HERTEL 331-207060 is a single-flute carbide countersink designed for producing clean, accurate countersunk holes in metal and other hard materials. With a 5/8 inch head diameter and an 82-degree included angle, this tool matches standard flat-head fastener geometry used across machining, fabrication, and assembly operations. The straight-cylindrical shank measures 5/8 inch in diameter, allowing direct mounting in standard drill chucks or collet holders. Carbide construction delivers the hardness and wear resistance needed for production runs and difficult materials where high-speed steel tooling falls short. Machinists and tool-and-die professionals select this countersink for precision chamfering and deburring work.

This countersink is suited for use in CNC machining centers, drill presses, and manual milling setups where consistent countersink depth and angle are required. The single-flute design reduces chatter and produces a smoother finish compared to multi-flute versions, making it a practical choice for non-ferrous metals, hardened steel, and composite materials. It is appropriate for both production-floor and job-shop environments where tool longevity and hole quality are priorities.

Key Features

• 5/8 inch head diameter sized for standard flat-head fastener countersinks
• 82-degree included angle matches common flat-head screw geometry
• Single-flute design minimizes chatter and improves surface finish
• Solid carbide construction for extended tool life in hard and abrasive materials
• Straight-cylindrical 5/8 inch shank for direct chuck or collet mounting

Compatibility

Designed as an OEM-style single-flute carbide countersink compatible with standard 5/8 inch straight-shank drill chucks and collet holders used in CNC and manual machining equipment.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Secure the straight shank firmly in a drill chuck or collet holder rated for the shank diameter before use. Ensure the spindle is fully stopped and the machine is in a safe state before changing or inspecting tooling. Follow the machine manufacturer's speed and feed recommendations for carbide tooling to avoid chipping or premature wear.