Robet Charles Imperial Piloted Countersink - 3 Flutes Integral Pilot Straight Shank -5/32 Pilot Diameter - 120° Inclusive Angle - 5/16 Body Diameter

The Robet Charles Imperial Piloted Countersink – 3 Flute Integral Pilot Straight Shank is a precision cutting tool designed to countersink pre-drilled holes with perfect alignment. Its integral pilot minimizes wandering and chatter, delivering a clean, flush finish and consistent depth every time. The combination of a 5/32" pilot diameter, a 120° inclusive angle, and a 5/16" body diameter provides reliable performance across a range of hole sizes and materials.

The 3-flute design delivers smooth cutting action, improved stability, and efficient swarf evacuation, making it suitable for steel, aluminum, and plastics. Manufactured to high standards, this countersink is built for both workshop and production environments where precision and reliability are essential.

• Integral pilot for precise alignment and chatter-free countersinking: The built-in pilot keeps the countersink centered in the pre-drilled hole, delivering a clean, flush finish with consistent depth and minimal wandering.
• 3-flute design for smooth cutting and efficient swarf evacuation: Three cutting edges reduce vibration, improve stability, and quickly clear chips for a faster, cleaner operation across a variety of materials.
• Straight shank with 5/16" body diameter for stability and broad compatibility: Robust construction fits standard chucks and quick-change tooling, providing reliable seating and reduced deflection during heavy cutting.

This countersink helps you achieve repeatable, professional results, supporting faster setup, reduced rework, and better surface quality. With its integrated pilot and sturdy design, it’s a dependable choice for precise countersinking in both hand-held and machine-assisted workflows, across metal and plastic applications.