Polished Surfaces: All measuring surfaces of this center point gauge model are polished for easy and safe use, allowing you to concentrate on your work with peace of mind. High-Quality Craftsmanship: The body of this center angle measuring tool is made of high-quality high-carbon steel, chrome-plated, laser-etched, high-tech production, and high-quality materials to make your angle gauge dynamic and more accurate. High Quality: This brand new and high-quality center angle gauge is your best choice for measuring angles. Make your work smoother. Tape Measure Size: This center scribe gauge measures 100 x 70 mm and is highly accurate for precise angle measurements. No need to worry about the measurement accuracy. Specifications: Material: Carbon Steel, Measuring Accuracy: Class 1, Range. Angle Measure, Size: 100 x 70 mm / 3.9 x 2.8 inches, Weight: Approx. 196 g / 6.9 oz.