Robet Charles Imperial Piloted Countersink - 3 Flutes Integral Pilot Straight Shank -3/32 Pilot Diameter - 90° Inclusive Angle - 1/4 Body Diameter

The Robet Charles Imperial Piloted Countersink – 3 Flute Integral Pilot Straight Shank is built for precise countersinking of pre-drilled holes. With a precision ground integral pilot and a 90° included angle, it guides cleanly into the hole and delivers a chatter-free cut for a professional finish every time.

Designed for both workshop and production environments, this countersink’s integral pilot locks into the pre-drill for repeatable starts, while the straight shank and 3-flute geometry provide reliable performance across steel, aluminium, and plastics. Its robust construction is intended for long-lasting use in demanding projects.

• Integral pilot for precise alignment: The built-in pilot guides entry and centers the countersink, reducing wandering and chatter for a consistent countersink from start to finish.
• Three-flute geometry for smooth, stable cutting: The 3-flute design delivers steady cutting action, better swarf evacuation, and a cleaner finish on a variety of materials.
• Rigid straight shank with standard sizing: 1/4" body diameter and a 3/32" pilot diameter on a straight shank, designed for easy mounting in drills, mills, and tool holders common to most setups.

This countersink supports efficient workflows by delivering repeatable depth and surface quality, reducing rework and cycle time. Whether refining metalwork, plastic fabrication, or composite projects, it provides dependable performance, helps protect your workpiece margins, and extends tool life through controlled, predictable cutting.