Here we have another fantastic product from Proops Brothers Ltd.Steel ring mandrel or triblet with gauge a-z plus 1-6.This is a 2 in 1 steel ring mandrel.This mandrel is plain on one side and on the other side you have marking going from a to z plus 1 to 6. This allows you to see when enlarging your ring how much it needs to be enlarged.Grooved size markings at front.Plain no markings on the back of mandrel.Ideal to determine a ring size or to form and reshape rings.Length:23 cm or 230mm excluding handle.Handle length:6.5cm or 65mm.Ring mandrel minimum diameter: 12 mm.Ring mandrel maximum diameter: 24.2 mm.
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