Features Including 0-25mm, 25-50mm, 50-75mm micrometers, and equipped with calibration standard measuring rod and wrench Thickened bearing steel measuring surface, wear-resistant and long service life Exquisite workmanship, clear calibration, and accurate data reading Built-in force limiter on the spindle of the measuring tool to ensure accurate repeat readings 0 setting, rotating threaded socket set to 0 Feature: 1. Including 0-25mm, 25-50mm, 50-75mm micrometers, and equipped with calibration standard measuring rod and wrench 2. Thickened bearing steel measuring surface, wear-resistant and long service life 3. Exquisite workmanship, clear calibration, and accurate data reading 4. Built-in force limiter on the spindle of the measuring tool to ensure accurate repeat readings 5. 0 setting, rotating threaded socket set to 0 Specification: Item Type: MicrometerMaterial: Bearing steel Specification: 0-25mm, 25-50mm, 50-75mm Calibration Rod Specifications: 25mm, 50mm Package List: 3 x Micrometer2 x Measuring Rod 1 x Wrench Package List 3 x Micrometer 2 x Measuring Rod 1 x Wrench