The Shinwa A-1 radius gauge is a practical tool for measuring the roundness of edges from 0.5-7mm, the diameter of round bars up to 6mm, and at the same time, it also serves as a ruler with a scale from 0 to 150mm.

• Edge radius gauge: 0.5 – 7mm
• Diameter gauge: 0.5 – 6mm
• Ruler: 150mm
• Dimension: 175x15x0.5mm
• Accuracy: edge radius +- 0.1mm | rod diameter +- 0.05mm | ruler +- 0.15mm
• Material: Stainless steel