Robert Charles Imperial 3 Flute Countersink 90° - 1/2 Head Diameter

The Robert Charles Imperial 3 Flute Countersink is a precision cutting tool designed to countersink imperial-sized holes with a clean, consistent chamfer. It’s ideal for machinists, fabricators, maintenance technicians, and DIY enthusiasts who value accurate fits and smooth edges.

Its 3-flute geometry delivers smooth cutting action and reduced chatter, helping produce high-quality results across steel, aluminum, and plastics. Built for durability, this countersink provides reliable performance in workshop, maintenance, and production machining where surface finish matters.

• Three-Flute design for smooth cutting: The 3-flute geometry delivers a steadier cut with reduced vibration, producing a consistent chamfer and cleaner edge on imperial hole sizes in steel, aluminum, and plastics.
• 90° countersink with 1/2 in head diameter: Precisely angles chamfers to 90°, crafted to suit imperial hole sizes; the 1/2 inch head diameter provides robust guidance and sizable chip clearance for faster cycles.
• Durable construction for demanding use: Built for long tool life and reliable performance in workshop, maintenance, and production environments, resisting wear and chatter for repeatable results.

With this countersink, you can achieve precise chamfers quickly, improve fastener seating, reduce rework, and maintain consistent surface finishes across multiple materials. The robust design supports repeated use in busy workshops and production lines, giving you confidence to tackle precision countersinking tasks with predictable results.