50-63mm 1.97-2.48" Three Point Internal Bore Micrometer - 3227 Series (Insize)

The Insize 3227 Internal 3‑Point Bore Micrometer is a precision tool designed to measure internal diameters with confidence. Its three‑point contact and carbide measuring faces provide stable, repeatable readings, making it ideal for inspecting bores in tools, components, and assemblies. With a compact profile and a clear scale, this micrometer helps you get accurate results quickly, even in tight or awkward bores.

Equipped with a ratchet stop and supplied with a setting ring, the 3227 delivers consistent measuring force and easy, repeatable zeroing. It covers bore sizes up to 300 mm and features a fine 0.005 mm graduation, delivering reliable results across a wide range of applications while standing up to daily workshop use thanks to wear‑resistant carbide faces.

• Three-Point Contact Design: Engages bore walls at three points for stable, repeatable readings across curved surfaces, reducing measurement variability.
• Carbide Measuring Faces: Highly wear‑resistant to extend tool life and maintain accuracy when measuring hard or abrasive materials.
• Ratchet Stop and Setting Ring: Ensures a consistent measuring force and quick, repeatable setup for efficient, confident inspections.

This bore micrometer helps you streamline quality checks and reduce rework by providing dependable, easy‑to‑read measurements in 0.005 mm increments across bores up to 300 mm. Built to endure regular workshop use, it supports faster setup, repeatable results, and greater confidence in every bore measurement.