Robet Charles Imperial Piloted Countersink - 3 Flutes Integral Pilot Straight Shank -1/8 Pilot Diameter - 100° Inclusive Angle - 5/16 Body Diameter

The Robet Charles Imperial Piloted Countersink – 3 Flute Integral Pilot Straight Shank is a precision tool designed for accurate countersinking of pre-drilled holes. Built for both workshop and production environments, it delivers clean, professional finishes with each use.

Featuring a built-in integral pilot, a 3-flute design, and a straight shank, this countersink maintains perfect alignment, minimizes chatter, and provides smooth cutting across a range of materials. It is configured for an 1/8" pilot diameter, a 100° inclusive angle, and a 5/16" body diameter to support reliable, repeatable results on steel, aluminum, and plastics.

• Integral pilot for precise alignment: Centers the countersink in pre-drilled holes, delivering consistent flush finishes and reducing chatter for repeatable results.
• Three-flute design for smooth cutting: Provides stable cutting action, improved swarf evacuation, and cleaner holes with less vibration on a variety of materials.
• Robust imperial geometry: 1/8" pilot diameter, 100° included angle, and 5/16" body diameter on a straight shank deliver reliable performance across common countersinking tasks.

This countersink supports efficient workflows by delivering repeatable, high-quality countersinking with minimal setup and rework. Its integral pilot and durable construction help you achieve professional-looking finishes quickly, making it a dependable choice for both occasional hobby use and busy production environments.