Hertel 333-007070 Carbide Countersink 5/8 in 90 Degree 3 Flute

Product Description

The HERTEL 333-007070 is a single-end carbide countersink designed for precision chamfering and countersinking operations in metalworking and fabrication applications. It features a 5/8 inch head diameter with a 90-degree included angle and a 45-degree centerline angle, making it well suited for creating standard fastener seats in steel, aluminum, and similar materials. The straight cylindrical 3/8 inch shank mounts in a standard drill chuck or collet holder. With 3 right-hand flutes and a bright uncoated carbide construction, this tool delivers clean, accurate entry cuts without a pilot. Licensed machinists, tool-and-die workers, and millwrights are the primary users in job shop and production environments.

This countersink is used in general metalworking, fabrication shops, and maintenance operations where countersunk fastener holes are required. It is suited for manual drill press work as well as CNC and manual milling machine setups. The 90-degree angle is the most common geometry for flat-head machine screws and socket flat-head cap screws, making this tool a standard shop item across light and medium manufacturing. No pilot pin is included, so the operator controls center alignment through fixturing or prior pilot drilling.

Key Features

• 5/8 inch head diameter with 90-degree included angle for standard flat-head fastener countersinking
• 3 right-hand flutes for smooth cutting action and chip clearance
• Solid carbide construction for rigidity and wear resistance in ferrous and non-ferrous materials
• 3/8 inch straight cylindrical shank for compatibility with standard drill chucks and collet holders
• Bright uncoated finish — no coating buildup to affect dimensional accuracy
• Single-end, no-pilot design for use with pre-drilled or fixtured workpieces

Compatibility

Designed as an OEM-style cutting tool replacement for use in drill presses, manual mills, and CNC machines accepting a 3/8 inch straight-shank countersink in the 5/8 inch head diameter, 90-degree angle class.

Installation Notes

Installation is performed by machinists and toolroom personnel. Secure the shank firmly in a drill chuck or collet before operation and verify runout before cutting. Power down and lock out the machine spindle before changing or adjusting the tool. Do not exceed the recommended feed and speed parameters for the workpiece material and machine type.