Cooksongold Jewellers Large Rathburn Ring Stretcher

An affordable alternative to industrial stretchers Increase rings measuring; J, M, P, R, T, W, Z and Z+3 Made from stainless steel This Large Rathburn Ring Stretcher has been designed to easily and simply enlarge rings. Made from stainless steel with a brass colour plating, this portable tool is used to increase the size of rings that measure approximately; J, M, P, R, T, W, Z and Z+3. The smallest size that can fit on the stretcher is a ring size K/16mm. This tool comprises of a nylon base which holds the tool securely, defusing the noise and prevents damage to your worktop. A slotted stainless steel mandrel that widens when hammered, sizing rings and a top pin used to stretch the mandrel. Suitable for jewellers and hobbyist alike, this is a great affordable alternative to the larger industrial ring stretchers. It is recommended to use a nylon (997 3102) or rawhide mallet (997 3118) when hammering to ensure a gentle, slow increase. A heavier hammering action may effect your solder join. Please note - this ring stretcher is not suitable for sizing rings with stones and ensure to continually measuring your sizing with a ring stick.