Metric External Micrometers Precision Machinist Tools

Suitable size: it includes 4 different ranges (0-25mm, 25-50mm, 50-75mm, 75-100mm) for your choice Precision machinist tools: they have extremely high accuracy of 0.1mm, which can provide accurate readings Outside Micrometer: Made from durable hard carbide Note: Please check if it has been calibrated before use Packaging: 4 external micrometers, 3 calibration standards and 1 adjustment key, all packed in a suitcase