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When accuracy is the difference between winning and losing, there's one test spring kit that's a cut above the rest … the RIMAC calibrated 3-in-1 test spring kit from Proform. The kit includes three test springs: a lightweight spring, a medium weight, and a combined heavyweight spring, giving you an approximate test range from 10 to 640 lbs. They are super accurate and individually tested on an Instron SF1240 testing machine and a data sheet included. Make sure your spring testers are working correctly with Proform RIMAC calibrated 3-in-1 test spring kits. It may be the difference between winning and losing.
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$84.95
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