Hertel 331-201050 Countersink 1/8 in 60 Degree Carbide

Product Description

The HERTEL 331-201050 is a single-flute carbide countersink designed for precision chamfering and deburring of drilled holes. With a 1/8 inch head diameter and a 60-degree included angle, this tool is built for small-diameter work where accuracy matters. The carbide construction provides hardness and wear resistance suitable for cutting ferrous and non-ferrous materials. The straight cylindrical shank measures 1/8 inch, allowing it to seat securely in standard collets and chucks. Machinists and tool-and-die professionals use this countersink where a clean, consistent chamfer is required in tight spaces or on small workpieces.

This countersink is suited for light-duty countersinking operations on metal, plastics, and composite materials in machining, fabrication, and maintenance environments. The 60-degree included angle matches standard countersink geometry used in aerospace and general metalworking applications. The single-flute design reduces chatter and produces a smooth finish on softer workpiece materials. It is appropriate for use in CNC machining centers, manual mills, and drill presses where a 1/8 inch shank tool can be held.

Key Features

• 1/8 inch head diameter for small-hole countersinking applications
• 60-degree included angle matches standard aerospace and general metalworking chamfer geometry
• Single-flute design minimizes chatter and promotes a clean chamfer finish
• Carbide construction delivers hardness and wear resistance across a range of workpiece materials
• Straight cylindrical 1/8 inch shank fits standard collets and drill chucks

Compatibility

Designed as a standard single-flute carbide countersink compatible with any machine tool spindle or drill press capable of accepting a 1/8 inch straight cylindrical shank toolholder or collet.

Installation Notes

This tool is installed by a machinist or toolroom technician. Secure the straight shank firmly in a collet or drill chuck rated for the shank diameter before operation. Ensure the spindle and workpiece are properly fixtured before engaging the cutter. Follow all applicable shop safety procedures and machine guarding requirements when operating rotary cutting tools.