Understring radius gauge. 9 Understring Radius Gauge. Size:66 70mm (approx.). Etched with radius on handle. Radius: 7.25, 9.5, 10, 12, 14, 15, 16, 17, 20. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
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