Hertel 331-202060 Carbide Countersink 3/16 in 82 Degree 1 Flute

Product Description

The HERTEL 331-202060 is a single-flute carbide countersink designed for precise chamfering and countersinking operations in metalworking and fabrication applications. With a 3/16 inch head diameter and an 82-degree included angle, this tool produces clean, accurate seat angles for flat-head fasteners in a range of workpiece materials. The straight-cylindrical shank measures 3/16 inch in diameter, making it compatible with standard drill chucks and collet holders. Carbide construction provides hardness and wear resistance suited to production cutting environments where tool longevity is a priority.

This countersink is used in machine shop, toolroom, and light manufacturing settings where tight-tolerance chamfers are required. The 82-degree included angle matches the seat geometry of standard flat-head screws and is a common specification in aerospace, sheet metal, and general machining work. It is sized for smaller fastener applications and is installed in drill presses, CNC machining centers, or hand-held power tools equipped with a compatible chuck.

Key Features

• 3/16 inch head diameter for small fastener countersinking applications
• 82-degree included angle matches standard flat-head screw seat geometry
• Single-flute design reduces cutting forces and chatter on entry
• Carbide construction delivers hardness and extended wear life versus HSS alternatives
• Straight-cylindrical shank fits standard drill chucks and collet systems

Compatibility

Designed as an OEM-style replacement or direct-use countersink for machining setups requiring a 3/16 inch straight-shank tool with an 82-degree included angle and single-flute carbide geometry.

Installation Notes

Installation is performed by machinists or tool-and-die trades using a standard drill chuck or collet holder sized for a 3/16 inch shank. Ensure the tool is fully seated and the chuck is tightened securely before operation. Run at appropriate spindle speeds for carbide tooling in the workpiece material being cut. Do not use excessive feed pressure on entry, as single-flute countersinks require a controlled, steady feed to produce a clean seat angle.