Features 1、Main Purpose: This outside micrometer is mainly used to accurately measure length, diameter or thickness. 2、High Accuracy: With wide measuring range, which is a more accurate measuring tool than vernier caliper. 3、Stainless Steel: Made of excellent stainless steel material, hard and wear resistant, not easy to rust. 4、Clear Scales: The roller measuring exterior has clear scales, with small errors, and more accurate measurement data. 5、Portable Design: The outer micrometer is light and small, simple and fast to operate, and is widely used in machinery factories. Specification Item Type: Outside Micrometer Material: Stainless Steel Accuracy: 0.01mm Uses: Outside micrometer, thickness measuring ruler Package List 1 x Outside Micrometer 1 x Wrench 1 x Calibration Block 1 x Plastic Box