Hertel 331-202050 Carbide Countersink 3/16 in 60 Deg 1 Flute

Product Description

The HERTEL 331-202050 is a single-flute carbide countersink designed for precision chamfering and countersinking operations in metal, composites, and hard materials. Built with a 3/16-inch head diameter and a 60-degree included angle, it produces clean, accurate seat geometry for flathead fasteners and deburring applications. The straight cylindrical shank measures 3/16 inches in diameter, making it compatible with standard drill chucks and collet holders. Carbide construction delivers extended tool life and consistent cutting performance in demanding shop and field applications. Machinists, tool and die technicians, and maintenance professionals typically reach for this tool when precision countersinking is required on hardened or abrasive workpieces.

This countersink is suited for use in CNC machining centers, manual drill presses, and handheld drill applications where a 60-degree seat angle is required. The single-flute design reduces chatter and improves hole finish in materials that tend to grab or work-harden. It is appropriate for light-duty countersinking tasks in ferrous metals, aluminum, and similar materials where a clean chamfer or fastener recess is needed.

Key Features

• 3/16-inch head diameter for small-diameter countersink applications
• 60-degree included angle produces standard fastener seat geometry
• Single-flute design minimizes chatter and improves surface finish
• Carbide construction extends tool life in hard and abrasive materials
• Straight cylindrical shank fits standard drill chucks and collet holders

Compatibility

Designed as a standard single-flute countersink for use with drill chucks and collet systems accepting a 3/16-inch straight cylindrical shank.

Installation Notes

This tool is typically installed and operated by machinists or maintenance technicians using a drill press, CNC spindle, or handheld drill with a compatible chuck. Secure the shank fully in the chuck or collet before operation and verify runout before cutting. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life and improve finish quality. Inspect the cutting edge before each use and replace if chipping or wear is visible.