Robet Charles Imperial Piloted Countersink - 3 Flutes Integral Pilot Straight Shank -1/4 Pilot Diameter - 120° Inclusive Angle - 7/16 Body Diameter

Meet the Robet Charles Imperial Piloted Countersink — a precision tool designed for accurate, repeatable countersinking of pre-drilled holes in steel, aluminum, and plastics. With a precision-ground integral pilot, it guides the cutter for true alignment and a clean, flat countersink every time. Whether you’re in a workshop or a production environment, this countersink helps you achieve professional results with minimal setup.

The design centers on real-world usability: a robust 3-flute configuration delivers smooth cutting action, stable performance, and efficient swarf evacuation. Manufactured to high-quality standards, it provides reliable performance day after day, reducing chatter and burrs so you can finish faster with consistent results.

• Integral pilot for precise alignment: The built-in pilot guides the countersink directly in the pre-drilled hole, minimizing wandering and delivering repeatable, chatter-free countersinks with a clean top surface.
• Three-flute design for smooth cutting and efficient swarf evacuation: More flute edges mean steadier cutting, improved stability, and quick chip removal, reducing heat and preserving hole quality across materials.
• Straight shank with standard geometry for quick setup: Includes a 1/4" pilot diameter, 120° included angle, and 7/16" body diameter, all sized for easy integration with common drill chucks and fixtures for fast, reliable setup.

Designed for demanding use in both hobbyist shops and busy production lines, this countersink helps you achieve consistently professional results. The integrated pilot alignment, combined with the stable 3-flute cutting action and durable geometry, supports efficient workflow, precise screw seating, and a high-quality finish across multiple materials—steel, aluminum, and plastics—every time you reach for it.