Features 1、Made of high‑quality high‑carbon steel casting, high hardness and durable 2、Using advanced laser scale, marking is clear, high accuracy and accurate reading 3、The bayonet of scale is flat with fine workmanship, and the bayonet bite tightly 4、The top nut can be tightened to lock the measurement data, convenient and practical 5、Available in 3‑styles for choices, 0‑150mm, 0‑200mm and 0‑300mm, can meet different needs Specification Item Type: Vernier Scale Material: High carbon steel Scope of Application: Used to measure the width of the workpiece, the outer diameter, inner diameter and depth of the workpiece Product Use: Step measurement, decoration measuring tools, factory, electrician maintenance, etc. Measuring Range(approx.): 1. 0 ~ 150mm / 0 ~ 5.9in 2. 0 ~ 200mm / 0 ~ 7.9in 3. 0 ~ 300mm / 0 ~ 11.8in Accuracy: 0.02mm Package List 1 x Caliper 1 x Storage Box