Features: <br> <br>Made of stainless steel, this radius gauge is durable and resistant to rust. <br>This radius gauge has two types of leaves so it can check both convex and concave surfaces. <br>Each leaf is clearly marked, convenient to identify which leaf you need. <br>There are four radium gauges in different shapes and sizes to meet you various need. <br> <br>Very useful gauge for tool & die makers, machinists, and many other worker to check the radius of tools. <br> <br>Specification: <br>Material: Stainless steel <br> <br>Measuring Range: R0.3-1.5/ R1-6.5/ R7-14.5/ R15-25 <br>Weight: 270g / 9.5oz(approx.) <br> <br>Package list: <br>4 * Radius Gauges<br>1、Made of stainless steel, this radius gauge is durable and resistant to rust. <br>2、This radius gauge has two types of leaves so it can check both convex and concave surfaces. <br>3、Each leaf is clearly marked, convenient to identify which leaf you need. <br>4、There are four radium gauges in different shapes and sizes to meet you various need. <br>5、Very useful gauge for tool & die makers, machinists, and many other worker to check the radius of tools.