Features: This quality angles plate scale ruler is a must-get tool for precisions milling, with a 45-degree testing ranges that meets all your need Produced of durable and wear-resistant material, this compact and lightweight angles plate is simple to carry and store. The clear scale markings ensure accurate reading of testing data. Whether you're a professional machinist or a DIY enthusiasts, this angles plate is perfect for anyone who need precise measurements for their milling projects. Use it for variety of applications, such as drilling, grinding, and milling, to achieve perfect angles every . It is an essential tool for any workshop or garage. With its practical design and long lifespans, this angles plate is a reliable and efficient tool that will helps you achieve accurate results in your milling projects. Specifications: Material: stainless steel Length: approx 100mm/132mm(optional) Size: approx Outer radius: 30mm, inner radius: 15mm/Outer radius: 90mm, inner radius: 67mm(optional) Note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xScale Ruler