Robert Charles Metric Piloted Countersink - 3 Flutes - Integral Pilot - Straight Shank - 3.0mm Pilot Diameter - 90° Inclusive Angle

The Robert Charles Metric Piloted Countersink with a 3-flute cutting geometry is designed to provide precise, repeatable countersinking for metric pre-drilled holes. Featuring an integral pilot and a straight shank, it guides clean entry and keeps the countersink aligned with the hole for concentric, chatter-free results.

Ideal for workshop, maintenance, and production machining, this countersink handles steels, aluminium, and plastics with reliable performance. Its robust design supports consistent results across a wide range of projects, delivering a clean seat for fasteners and a smooth finish.

• Integral pilot for accurate alignment: The built-in pilot guides entry and prevents tool wander, ensuring concentric countersinking and repeatable starts every time.
• Three-flute design for smooth cutting and chip evacuation: With three cutting edges, it delivers stable cutting, reduced chatter, and efficient removal of chips for a cleaner finish.
• Metric-ready geometry (3.0 mm pilot, 90° angle): Specifically sized for metric holes, the 3.0 mm pilot diameter and 90° inclusive angle provide precise seating and a crisp finish on steels, aluminium, and plastics.

Using this countersink helps you achieve consistent, flush seating with fewer reworks, improving workflow efficiency and overall part quality. Its integral pilot and robust straight shank provide reliable performance across materials and applications, making it a dependable choice for precision drilling, assembly, and maintenance tasks.