Features 4 external micrometers of different sizes are equipped with calibrated standard bars and wrench to meet your different measurement needs and are easy to carry. Accurate reading and exquisite workmanship, clear lase scale can provide accurate data Measuring tool spindle built-in force limiting devices ensures accurate repeat readings 0 setting, the rotating threaded sleeve set to 0 Thickened cemented carbide measuring surface, wear-resistant, long service life, suitable for measuring work in workshops and factories,etc. Feature: 1、4 external micrometers of different sizes are equipped with calibrated standard bars and wrench to meet your different measurement needs and are easy to carry. 2、Accurate reading and exquisite workmanship, clear lase scale can provide accurate data. 3、Measuring tool spindle built-in force limiting devices ensures accurate repeat readings. 4、0 setting, the rotating threaded sleeve set to 0. 5、Thickened cemented carbide measuring surface, wear-resistant, long service life, suitable for measuring work in workshops and factories,etc. Specification: Item Type: Micrometer Accuracy: 0.0001in Standard: 0-1in, 1-2in, 2-3in, 3in-4in Size: Approx. 20.6 x 10mm / 0.8 x 0.4in 18 x 8mm / 0.7 x 0.3in 12.3 x 6.5mm / 0.5 x 0.3in 12.7 x 5mm / 0.5 x 0.2in Package List: 4 x Micrometer 3 x Accessories 1 x Wrench Package List 4 x Micrometer 3 x Accessories 1 x Wrench