Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 7/32 Pilot Diameter - 100°

The Robert Charles Piloted Microstop Countersink is a precision tool designed for high-accuracy countersinking with an integral pilot for exact hole alignment. It features a 3‑flute cutting design and a 100° countersink angle, with a threaded shank for secure fitment and reliable depth control. The pilot diameter is held to a tight tolerance of −0.0005" to −0.0015", ensuring repeatable, concentric results in aerospace, automotive, and other precision engineering applications.

• Precision 3‑Flute Cutting Design: Delivers clean, burr-free countersinks with smooth advancement and reliable chip evacuation for consistent finishes on challenging materials.
• Integral Pilot for Exact Alignment: The built‑in pilot centers the countersink on the hole, ensuring concentric countersinks and reducing rework in precision assemblies.
• Threaded Shank for Secure Fit and Depth Control: Locks into microstop cages for repeatable depth control and stable alignment across production runs, with a 7/32" pilot diameter and a 100° countersink angle.

This countersink delivers dependable, high‑precision results that streamline your workflow: quick setup with a secure, repeatable fit, fewer passes, and consistent finished holes suitable for aerospace components, automotive assemblies, and other precision machined parts. By maintaining tight pilot tolerances and reliable depth control, it reduces rework and downtime while delivering repeatable quality—every time you drill or countersink.