Hertel 18675 Countersink 1 in 60 Degree 4 Flute Hss

Product Description

The HERTEL 18675 is a single-piece countersink designed for precision chamfering and deburring of drilled holes in metal and other machinable materials. Built from high speed steel, this tool delivers consistent cutting performance across production and maintenance applications. The 1-inch head diameter and 60-degree included angle make it well suited for standard fastener seat preparation and chamfer work. The straight-cylindrical shank measures 0.5 inches in diameter, allowing direct mounting in drill presses, lathes, or milling machine spindles. Four flutes distribute cutting load evenly and help clear chips efficiently during operation.

This countersink is used in metalworking shops, maintenance facilities, and light manufacturing environments. It is appropriate for creating chamfers at 60 degrees on pre-drilled holes to accept flat-head fasteners or to clean up hole edges before assembly. The 1-inch head diameter provides coverage for a wide range of hole sizes typically encountered in structural and mechanical fabrication work. Machinists, toolroom technicians, and maintenance mechanics are the primary users of this tool.

Key Features

• 1-inch head diameter for broad hole coverage in chamfering applications
• 60-degree included angle matches standard flat-head fastener seat geometry
• 4-flute design distributes cutting forces evenly and promotes chip evacuation
• High speed steel construction withstands heat generated during cutting
• Straight-cylindrical shank with 0.5-inch diameter fits standard drill press and lathe chuck sizes

Compatibility

Designed as a straight-shank countersink for use in drill presses, lathes, milling machines, and similar equipment fitted with chucks or collets sized to accept a 0.5-inch cylindrical shank.

Installation Notes

This tool is installed and operated by machinists and toolroom technicians following standard machine shop safety practices. Secure the shank fully in the chuck or collet before operation and confirm the workpiece is clamped firmly to prevent movement. Use appropriate cutting fluid for the workpiece material to extend tool life and improve finish quality. Power down and lock out the machine before changing or adjusting tooling.