Hertel 334-301100 Carbide Countersink 1/8 in 4 Flute

Product Description

The HERTEL 334-301100 is a solid carbide countersink designed for creating clean, accurate conical seat recesses in metal, plastic, and composite workpieces. It features a 1/8 inch head diameter, a 120-degree included angle, and 4 flutes that promote smooth chip evacuation and a consistent finish. The straight cylindrical shank measures 1/8 inch in diameter for direct chuck or collet mounting. This tool is suited for precision machining operations where burr-free countersink profiles are required before fastener seating or deburring.

The 334-301100 is used in production and job-shop environments for countersinking small-diameter holes in ferrous and non-ferrous materials. Its 120-degree included angle matches standard fastener head geometry commonly specified in aerospace, automotive, and general metalworking applications. The compact 1/8 inch diameter makes it appropriate for tight-clearance work and small-part fixturing where larger countersinks cannot be used. Machinists and toolroom technicians are the primary users of this tool on CNC machining centers, drill presses, and manual mills.

Key Features

• Solid carbide construction for extended tool life in abrasive and hard materials
• 120-degree included angle matches standard flat-head fastener seat geometry
• 4 flutes provide efficient chip removal and a smooth, chatter-resistant cut
• 1/8 inch straight cylindrical shank for direct chuck or collet clamping
• Compact 1/8 inch head diameter suited for small-hole and close-tolerance work

Compatibility

Designed as a standard straight-shank countersink for use in any drill press, CNC machining center, or manual mill equipped with a collet or drill chuck accepting a 1/8 inch shank.

Installation Notes

This countersink is installed by a machinist or toolroom technician into a collet or drill chuck. Ensure the machine spindle is fully stopped and the chuck is securely tightened before beginning any operation. Use appropriate cutting fluid or dry-cutting technique as recommended for the workpiece material. Inspect the cutting edges before each use and replace the tool at the first sign of chipping or edge wear to avoid surface defects in the finished countersink.