75-88mm 2.95-3.46" Three Point Internal Bore Micrometer - 3227 Series (Insize)

The Insize 3227 Series Three Point Internal Bore Micrometer is a precision instrument engineered for accurate inside-diameter measurements across a broad range. It’s ideal for machinists, quality inspectors, engineers, and hobbyists who need dependable bore readings on cylinders, housings, and other round bores. With a measurement capacity that extends up to 300 mm and a fine 0.005 mm graduation, it delivers consistent results you can trust in everyday workshop use.

• Three-point contact for stable readings: The three-point contact design centers on the bore wall to minimize eccentric errors, giving repeatable, trustworthy measurements even on imperfect surfaces.
• Carbide measuring faces for wear resistance: Durable carbide faces stand up to repeated contact with bore surfaces, maintaining accuracy and reducing the need for frequent recalibration.
• Ratchet stop and setting ring for quick setup: A built-in ratchet stop applies consistent measuring pressure, while the included setting ring speeds setup and ensures readings are easy to replicate.

This bore micrometer helps streamline inspection workflows by providing reliable internal measurements quickly, reducing rework, and delivering consistent results across lots. Its rugged construction, long-life carbide faces, and user-friendly features make it a dependable tool for professionals and serious hobbyists alike.