Hertel 334-005070 Countersink 3/8 in 90 Deg 4 Flute Carbide

Product Description

The HERTEL 334-005070 is a solid carbide countersink designed for producing clean, accurate countersunk holes in metal, composites, and similar materials. With a 3/8 inch head diameter and a 90-degree included angle, it conforms to standard fastener seat geometry for flat-head screws and bolts. The straight cylindrical shank measures 1/4 inch in diameter, making it compatible with standard drill chucks and quick-change collet holders. Four flutes provide smooth cutting action and efficient chip evacuation. This tool is suited for use on CNC machining centers, drill presses, and hand-operated power tools where consistent countersink geometry is required.

This countersink is intended for use in machine shops, production environments, and maintenance applications where precise fastener seating is critical. Typical applications include deburring through-holes and chamfering fastener entry points in steel, aluminum, and engineered plastics. The carbide construction handles harder workpiece materials where high-speed steel tooling wears prematurely. Machinists, tool and die technicians, and general metalworkers will find this tool appropriate for both low-volume and repetitive production work.

Key Features

• 3/8 inch head diameter with a 90-degree included angle matches standard flat-head fastener geometry
• Solid carbide construction for extended tool life in hard or abrasive materials
• 4-flute design promotes smooth cutting and effective chip removal
• 1/4 inch straight cylindrical shank fits standard drill chucks and collet holders
• Single-piece construction eliminates insert slippage and simplifies tool management

Compatibility

Designed as a standard replacement or production countersink for use in any machine tool accepting a 1/4 inch straight cylindrical shank, including drill presses, CNC machining centers, and hand-held power drills.

Installation Notes

Installation is performed by machinists or tooling technicians. Secure the shank fully in the chuck or collet and verify runout before cutting. Always power down the machine and lock out energy sources before changing tooling. Carbide tooling is brittle and should not be used with excessive side loading or interrupted cuts that could cause chipping.