Guhring 9056740317500 Countersink 82 Deg 3 Flute Tialn

Product Description

The GUHRING 9056740317500 is a single-end, 82-degree included-angle countersink designed for production and maintenance machining applications. Built from cobalt steel and finished with a TiAlN coating, it delivers extended tool life when cutting ferrous and abrasion-resistant workpiece materials. The 3-flute geometry promotes smooth chip evacuation and a clean countersink finish. The 1/2-inch straight-cylindrical shank seats securely in standard drill press chucks and CNC machine tool holders. This is a solid, no-pilot countersink with right-hand cutting direction, suitable for machinists and toolroom technicians working in job shop or industrial environments.

This countersink is suited for countersinking operations in cast iron, stainless steel, and carbon or alloy steel. The 82-degree included angle matches the standard flat-head fastener geometry common in aerospace, fabrication, and general metalworking assemblies. It is installed directly by a machinist or toolroom professional and is compatible with standard vertical mills, drill presses, and CNC machining centers using a 1/2-inch collet or chuck. The TiAlN coating supports elevated cutting temperatures, making it appropriate for harder steels and stainless grades that generate heat at the cutting edge.

Key Features

• 82-degree included angle matches standard flat-head fastener seat geometry
• Cobalt steel substrate provides toughness in hard and abrasive materials
• TiAlN coating extends tool life at elevated cutting temperatures
• 3-flute design promotes smooth chip flow and clean seat finish
• Right-hand cutting direction for conventional machine tool spindle rotation
• No pilot, no attachment required — mounts directly via 1/2-inch straight shank

Compatibility

Designed for use in cast iron, stainless steel, and steel workpieces; fits standard machine tool holders, collets, and drill press chucks accepting a 1/2-inch straight-cylindrical shank.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before inserting or removing the tool from the chuck or collet holder. Secure the shank to the full recommended grip depth to prevent pullout under cutting loads. Do not exceed the machine spindle speed recommended for the workpiece material and tool diameter.