Hertel 333-004050 Countersink 5/16 in 60 Deg 3 Flute Carbide

Product Description

The HERTEL 333-004050 is a solid carbide countersink designed for precise countersinking operations in metalworking and fabrication applications. It features a 5/16-inch head diameter and a 60-degree included angle, making it suited for standard fastener seat preparation. The 1/4-inch straight cylindrical shank fits common drill chucks and quick-change holders. With 3 flutes and a bright uncoated finish, this tool delivers clean, accurate countersinks in a right-hand cutting direction. It is a single-end tool with no pilot and is sold individually. Machinists, tool-and-die makers, and general metalworking professionals are the typical users.

This countersink is used in bench-top and production machining environments where fastener holes require a chamfered seat. The 60-degree included angle suits a range of standard flat-head screw specifications. Its compact head diameter and 1/4-inch shank make it compatible with hand drills, drill presses, and CNC machining centers. It is appropriate for use on metals and other machinable materials where a bright uncoated carbide tool is acceptable. The single-end design means the cutting geometry is fixed, and the tool is replaced rather than re-tipped when worn.

Key Features

• 5/16-inch head diameter for compact countersink profiles
• 60-degree included angle, 30-degree centerline angle for standard fastener seat geometry
• 3-flute carbide construction for rigidity and clean cutting action
• Right-hand cut with a straight cylindrical 1/4-inch shank
• Bright uncoated finish, no pilot, single-end configuration

Compatibility

Designed as a standard-geometry countersink for use with drill chucks and quick-change tool holders accepting a 1/4-inch straight cylindrical shank.

Installation Notes

Installation is performed by machinists or tooling technicians securing the shank in a drill chuck or collet. Ensure the workpiece is clamped securely before operation and set spindle speed appropriate to the workpiece material and carbide tooling recommendations. Inspect the cutting edges before use and replace the tool if chipping or wear is observed. Do not use this tool for operations outside its rated countersinking application.