Amazon.com: Baluue 10 Pcs Radius Gauge Arc Measuring Tool Radius Checking Gauge Precision Tools Radius and Fillet Gauge Radius Measurer Number Mold Radius Meter Corner 3D Instrument Stainless Steel : Industrial &
BAILEIGH INDUSTRIAL, 6 in to 144 in Range, +/-5% Accuracy, Variable-Arc Outside Radius Gauge - 15V766|ORG-3600 - Grainger
OBPFY Stainless Steel Radius Gauge Set, 6Pcs Portable Concave Convex External Internal Arc Measuring Tool for Tool and Die Makers Check (R0.3-1.5/ R1-6.5/ R7-14.5/ R15-25/ R25-50/R26-80): Amazon.com: Industrial & Scientific
4 pieces stainless steel radius fillet gauge measuring tool, 2 types of radius gauges can be used to check convex and concave surfaces, measuring range R0.3-1.5/ R1-6.5/ R7-14.5/ R15-25
HARFINGTON R25-50 Radius Gauge Alloy Steel Radius Fillet Gauge Portable Concave Convex Measuring Tool for Tool and Die Makers Check - Yahoo Shopping