The INSIZE 3227-504 Three Point Internal Micrometer Set is a precision bore measurement set designed for measuring internal diameters across a 20–50mm range. The set includes four interchangeable three-point internal micrometers covering 20–25mm, 25–30mm, 30–40mm and 40–50mm, providing a broad range of measurement options for professional dimensional inspection.
Each micrometer uses a three-point contact measuring system for stable positioning inside cylindrical bores. The set features a 0.005mm graduation, making it suitable for precision measurement and inspection applications.
The INSIZE 3227-504 is supplied with setting rings and a 150mm extension rod, supporting convenient setup and measurement across different bore sizes. The ratchet stop helps provide controlled measuring force during operation.
This three-point internal micrometer set is suitable for CNC machining, machine shops, tool rooms, manufacturing, automotive component inspection, precision engineering and quality-control applications. It can be used to inspect holes, bushes, sleeves and other cylindrical components where accurate internal diameter measurement is required.
Key Features
- 20–50mm overall measuring range.
- Includes 20–25mm, 25–30mm, 30–40mm and 40–50mm micrometers.
- Three-point contact design for internal bore measurement.
- 0.005mm graduation for precision dimensional inspection.
- Supplied with setting rings for measurement setup.
- Includes 150mm extension rod.
- Ratchet stop for controlled measurement.
- Suitable for professional machining and quality-control applications.
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