Hydraulic COMP Cams mini valve spring testers are designed to be portable and low-cost alternatives to bench-top style spring testers. Each of these 0-1,000 lb. testers is scaled off in 20 lb. increments and includes a recalibration feature. Their hex-shaped body can be placed in a vise, used with an arbor press, used with an arbor press, or used in a drill press with the addition of a flange (sold separately).

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