Hertel 334-206070 Countersink 0.5 in 90 Degree 4 Flute Carbide

Product Description

The HERTEL 334-206070 is a solid carbide countersink designed for producing clean, chamfered entry points in metal and other hard materials. Featuring a 0.5 inch head diameter and a 90-degree included angle, this tool cuts accurate seat profiles for flat-head fasteners in one pass. The 4-flute geometry distributes cutting load evenly, reducing chatter and extending tool life in production or maintenance applications. With a straight-cylindrical shank of 0.5 inches, it mounts directly into standard drill chucks or collet holders without adapters. Machinists, tool-and-die technicians, and maintenance professionals use this countersink for precision deburring and chamfering operations on the benchtop or in a CNC or drill-press setup.

This countersink suits general-purpose metalworking applications where consistent 90-degree fastener seats are required. Typical use cases include countersinking holes for machine screws, deburring drilled holes in steel or aluminum, and chamfering edges on fabricated components. The carbide construction makes it appropriate for harder workpiece materials where high-speed steel tooling wears prematurely. It is sold individually and fits shop environments ranging from job-shop machining to industrial maintenance.

Key Features

• 0.5 inch head diameter for standard flat-head fastener seat preparation
• 90-degree included angle matches the most common machine screw countersink geometry
• 4-flute design reduces chatter and produces a smoother finish than 1- or 2-flute alternatives
• Solid carbide construction for extended tool life in harder workpiece materials
• Straight-cylindrical 0.5 inch shank fits standard drill chucks and ER collet systems

Compatibility

Designed as an OEM-style replacement or direct substitute for standard 0.5 inch straight-shank countersinks used in drill presses, manual mills, and CNC machining centers accepting cylindrical-shank tooling.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Secure the straight-cylindrical shank fully into the chuck or collet and confirm runout before cutting. Always power down and lock out the machine spindle before changing or setting tooling. Use appropriate cutting fluid for the workpiece material to maximize tool life and surface finish quality.