Robert Charles Imperial 3 Flute Countersink 100° - 5/8 Head Diameter

The Robert Charles Imperial 3 Flute Countersink is a precision cutting tool designed for accurate countersinking of imperial-sized holes. With a 100° included angle and a 5/8" head diameter, it delivers clean, uniform chamfers for dependable screw seating and edge protection. It’s a versatile choice for workshops, maintenance tasks, and production machining where consistent chamfer quality matters.

The 3-flute design provides smooth cutting action, improved stability, and reduced chatter, helping you achieve high-quality results across a range of materials including steel, aluminium, and plastics. Built for durability and reliable performance, this countersink is well suited for demanding environments where precision and surface finish are priorities.

• 3-Flute design for smooth cutting: Reduces vibration and chatter to produce clean, consistent chamfers quickly, minimizing rework.
• Precise 100° countersink with 5/8" head diameter: Delivers a standard imperial chamfer that ensures even screw seating and uniform edges across parts.
• Durable, multi-material performance: Engineered for long life and reliable results when cutting steel, aluminium, and plastics in busy shop and production settings.

This countersink helps you streamline workflows by delivering repeatable finishes, improving fastener alignment, and reducing downtime from rework. With dependable performance and a robust build, it supports professional results from prototype work to high-volume production.