R0.3-1.5mm Measure Tool 26 Leaves Metal Radius Gauge Gage

Radius gauges require a bright light behind the object to be measured. The gauge is placed against the edge to be checked and any light leakage between the blade and edge indicates a mismatch that requires correction; It is a kind of observational measurement because of its visual test way; R0.3-1.5mm includes 13pcs at each end, radius as 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm.