Feature:1. Forging using professional methods, the product has high accuracy, anti-wear and not easy to rust.2. The spacing is fixed by quick nuts, which is simple and convenient to operate.3. With 4in/6in/8in different size specifications, convenient to complete the work more efficiently and conveniently during use..4. Wide range of uses, can be used to draw lines from edges, draw arcs, locate, etc.5. Strict quality control and quality assurance, high safety factor, can be used with peace of mind.Specification:Item Type: Spacing GaugeMaterial: Carbon steel, brassPurpose: Draw a line from the edge, draw an arc, position, etc.SpecificationsThickness(approx.)Maximum radius(approx.) 4in2.2mm / 0.1in115mm / 4.5in 6in 2.2mm / 0.1in137mm / 5.4in 8in 2.2mm / 0.1in207mm / 8.1in.Package List:1 x Spacing Gauge