Hertel 334-205060 Countersink 3/8 in 82 Degree 4 Flute Carbide

Product Description

The HERTEL 334-205060 is a solid carbide countersink designed for producing clean, accurate chamfered seat holes in metal, composite, and similar materials. It features a 3/8 inch head diameter, an 82-degree included angle, and four flutes that promote smooth chip evacuation and consistent finish quality. The straight-cylindrical shank measures 3/8 inch in diameter, making it compatible with standard drill press chucks and CNC machine tool holders. Machinists and fabricators use this tool when precise countersink geometry is required for flat-head fastener seating in production or maintenance applications.

This countersink is suited for job shop, manufacturing, and maintenance repair operations where an 82-degree countersink profile is specified. The 82-degree included angle corresponds to the standard flat-head screw geometry common in aerospace and general metalworking fastener applications. Its carbide construction supports use in harder workpiece materials and higher-speed cutting environments compared to high-speed steel alternatives. The 3/8 inch shank fits directly into collets, drill chucks, and quick-change holders found on most vertical machining centers and drill presses.

Key Features

• 3/8 inch head diameter for accurate flat-head fastener seat preparation
• 82-degree included angle matches standard aerospace and general-purpose flat-head screw geometry
• Four flutes promote efficient chip evacuation and reduced chatter
• Solid carbide construction supports higher cutting speeds and harder materials
• 3/8 inch straight-cylindrical shank fits standard chucks and collet holders

Compatibility

Designed as a direct-fit countersink for use in standard 3/8 inch collet or drill chuck setups on drill presses, vertical machining centers, and CNC turning equipment requiring an 82-degree countersink profile.

Installation Notes

This tool is installed by a machinist or tooling technician into a compatible collet, chuck, or quick-change holder. Ensure the machine spindle is fully stopped and locked out before securing or removing the tool. Set appropriate spindle speed and feed rate for the workpiece material and tool diameter per the machine manufacturer guidelines. Avoid running the countersink without secure workpiece fixturing, as movement during cutting can damage the tool or workpiece surface.