Features Easy Identification: This radiimeter has two types of blades, so it can check convex and concave surfaces. Each leaf is clearly marked for easy identification of the leaf you need. A Variety of Options: There are a variety of radium meters with different ranges to choose from, which are used to measure the radius of objects. Stainless Steel Material: This radius gauge is made of stainless steel, which is durable, rust-proof, long service life and more secure to use. Practical: Very useful gauge for tool and die makers, machinists and many other workers to check tool radius. Excellent After-sales Service: We provide you with high-quality after-sales service. If you have any questions, please feel free to contact us, and we will deal with it for you as soon as possible. Specification: Measuring Range: R0.3-1.5MM, R1-6.5MM, R7-14.5MM, R15-25MM, R25-50MM, R52-100MM (Optional) Material: Stainless steel Weight:  43g~105g / 1.5oz~3.7oz(approx.) Package list: 1 * Radius Gauge Package List