Robert Charles Metric Piloted Countersink - 3 Flutes - Integral Pilot - Straight Shank - 12.0mm Pilot Diameter - 100° Inclusive Angle

The Robert Charles Metric Piloted Countersink – 3 Flutes – Integral Pilot – Straight Shank is engineered for precise, repeatable countersinking of metric pre-drilled holes. The integral pilot ensures accurate alignment and prevents tool wander, delivering clean, concentric results with minimal chatter.

Its 3-flute cutting geometry provides smooth cutting performance, improved stability, and efficient chip evacuation, making it suitable for a wide range of materials including steels, aluminum, and plastics. Designed for reliability and consistent performance, this countersink is ideal for workshop, maintenance, and production machining applications.

• Integral pilot for precise alignment: The built-in pilot guides the cutter exactly into the hole, preventing wander and delivering concentric countersinks with minimal chatter across a range of materials.
• 3-flute cutting for smooth, stable cuts: Three flutes provide a smoother cut, better rigidity, and efficient chip evacuation, reducing heat and burrs for cleaner holes in steel, aluminum, and plastics.
• Universal compatibility: metric pilot and straight shank: With a 12.0 mm pilot diameter and 100° included angle, plus a straight shank compatible with standard tool holders, this countersink is ready for immediate use across a wide range of applications.

This countersink helps you finish holes with precision and speed, reducing downtime and rework while delivering consistent, professional results. The integral pilot and robust three-flute design support steady performance through production runs, maintenance tasks, and on-demand repairs—giving technicians and tradespeople the confidence to complete projects on time and to specification.