Hertel 334-010090 Carbide Countersink 1 in 120 Deg 4 Flute

Product Description

The HERTEL 334-010090 is a solid carbide countersink designed for precision chamfering and countersinking operations in metal, plastics, and composite materials. Built with a 120-degree included angle and four flutes, it delivers smooth, chatter-resistant cutting action and clean surface finishes in production and job-shop environments. The 1-inch head diameter allows coverage of a wide range of fastener seat sizes in a single pass. The straight cylindrical shank measures 0.5 inches in diameter for secure chuck or collet clamping. This tool is installed and used by machinists, toolmakers, and CNC operators working on precision hole preparation.

This countersink suits applications where accurate fastener seating is required, including aerospace, automotive, and general metalworking production. The 120-degree angle accommodates a range of flathead fastener standards. The four-flute geometry supports both hand-fed and machine-fed operation in drill presses, machining centers, and CNC mills. It is suited for use in both light and moderate production runs where consistent chamfer quality is required.

Key Features

• 1-inch head diameter for broad fastener seat coverage
• 120-degree included angle for standard flathead fastener countersinking
• Four-flute design reduces chatter and improves surface finish
• Solid carbide construction for extended tool life in hard materials
• Straight cylindrical 0.5-inch shank fits standard chucks and collets

Compatibility

Designed as an OEM-style replacement or direct-use countersink for machine tools accepting a 0.5-inch straight cylindrical shank, including drill presses, CNC machining centers, and manual mills.

Installation Notes

Installation is performed by machinists and CNC operators. Ensure the spindle is fully powered down and locked out before inserting or removing the tool from the chuck or collet holder. Secure the shank firmly to the rated grip depth of the holder to prevent pullout under cutting loads. Follow shop safety protocols and applicable OSHA machine-guarding requirements when operating rotary cutting tools.