Hertel 331-208050 Countersink 3/4 in 60 Degree Carbide

Product Description

The HERTEL 331-208050 is a single-flute carbide countersink designed for precision chamfering and deburring of drilled holes in metal, composite, and hard material workpieces. Built with a 60-degree included angle and a 3/4-inch head diameter, this tool produces clean, consistent countersunk profiles suited to fastener seating and edge preparation. The straight-cylindrical shank measures 3/4 inch in diameter, providing secure chuck engagement on standard drill presses, CNC machining centers, and hand-held power tools. Carbide construction delivers extended tool life compared to high-speed steel alternatives, making it a reliable choice for production and maintenance environments alike.

This countersink is suited for metalworking, fabrication, and machining applications where accurate chamfer geometry is required. The 60-degree included angle is commonly specified for metric fastener countersinking and precision hole preparation across aerospace, industrial maintenance, and general manufacturing settings. Machinists, tool-and-die technicians, and maintenance engineers working with drill presses, milling machines, or CNC equipment will find this tool appropriate for both short-run and repeat production work.

Key Features

• 3/4-inch head diameter for chamfering holes sized to accept medium-to-large fasteners
• 60-degree included angle for precise countersink geometry on metric and specialty fastener applications
• Single-flute design promotes smooth cutting action and minimizes chatter in hard materials
• Carbide construction provides superior wear resistance and extended service life over HSS tooling
• Straight-cylindrical shank measures 3/4 inch for broad compatibility with standard toolholders and chucks

Compatibility

Designed as a direct-fit replacement or new-install countersink for standard 3/4-inch straight-shank toolholders and drill chucks used in bench drill presses, CNC machining centers, and manual milling machines.

Installation Notes

Installation and use of this countersink should be performed by a qualified machinist or tooling technician. Secure the straight shank firmly in a compatible chuck or toolholder before operation and confirm runout is within acceptable limits for the application. Power down and de-energize the machine spindle completely before changing or adjusting tooling. Always operate at appropriate cutting speeds for carbide tooling in the workpiece material to prevent edge chipping or premature wear.