Hertel 334-005080 Countersink 3/8 in 100 Deg 4 Flute Carbide

Product Description

The HERTEL 334-005080 is a solid carbide countersink designed for creating precise conical seat profiles in metal and other hard materials. With a 3/8 inch head diameter and a 100-degree included angle, this tool produces clean, accurate chamfers suited to fastener seating and deburring operations. The 4-flute geometry distributes cutting load evenly, reducing chatter and improving finish quality. The 1/4 inch straight cylindrical shank fits standard drill chucks and collet holders without adapters, making it a straightforward drop-in for most benchtop drill presses, CNC machines, and hand-held power drills used in machine shops and fabrication environments.

This countersink is suited to production and maintenance machining applications where consistent 100-degree seat geometry is required. The carbide construction handles intermittent and continuous cutting in ferrous and non-ferrous materials. It is appropriate for metalworking tradespeople, machinists, and tool-and-die professionals working in job shops, manufacturing facilities, and maintenance-repair-operations settings. The compact 3/8 inch head diameter makes it practical for close-tolerance work and smaller fastener hole patterns.

Key Features

• 3/8 inch head diameter for compact, close-tolerance countersinking
• 100-degree included angle matches standard fastener seat geometry
• 4-flute design reduces chatter and improves surface finish
• Solid carbide construction for durability in ferrous and non-ferrous materials
• 1/4 inch straight cylindrical shank fits standard chucks and collets without adapters

Compatibility

Designed as an OEM-style replacement or direct-use countersink for standard 1/4 inch straight-shank tool holders, drill chucks, and collet systems used in benchtop drill presses, CNC drilling operations, and general-purpose hand-held power drills.

Installation Notes

A qualified machinist or metalworking technician should install this tool in a properly rated chuck or collet holder, ensuring the shank is fully seated and the holding mechanism is securely tightened before operation. Secure the workpiece firmly to prevent movement during cutting. Always operate at speeds and feeds appropriate for carbide tooling in the workpiece material, and use cutting fluid where recommended for the application. Inspect the cutting edges before each use and remove the tool from service if chipping or wear is observed.