Robet Charles Imperial Piloted Countersink - 3 Flutes Integral Pilot Straight Shank -1/8 Pilot Diameter - 100° Inclusive Angle - 1/4 Body Diameter

The Robet Charles Imperial Piloted Countersink – 3 Flute Integral Pilot Straight Shank is a precision cutting tool designed for accurate, repeatable countersinking of pre-drilled holes. With a built-in integral pilot, it centers perfectly for chatter-free cutting and a clean, flush finish every time. The 3-flute design delivers smooth cutting action, stable performance, and efficient swarf evacuation, making it suitable for steel, aluminium, and plastics in both workshops and production environments. It features a 1/8" pilot diameter, a 100° included angle, and a 1/4" body diameter to provide reliable performance across a range of hole sizes. Manufactured to high quality standards, this countersink is built for long-lasting reliability in demanding settings.

• Integral pilot alignment: The built-in pilot guides the countersink precisely into pre-drilled holes, delivering accurate depth and concentric seating with minimal wandering for consistent results.
• Three-flute smooth cutting: The 3-flute geometry reduces cutting forces, enables efficient material removal, and improves swarf evacuation to prevent clogging and chatter for a cleaner finish.
• Rugged straight shank and sizing: The straight shank fits standard chucks and collets, while the 1/4" body diameter and 100° included angle provide rigidity and a reliable chamfer across steel, aluminium, and plastics.

Using this countersink helps you automate and standardize your countersinking tasks, reduces rework, and improves part consistency. Its reliable performance supports faster setups, smoother workflows, and professional-looking results across a range of projects and production runs.