Precise Cal-X-Tender 6-36, Mfg.#Z2536, Converts Your 6 Caliper Into A Larger Measuring Device – CXT-636

6"-36"CAL-X-TENDER Z2536 Converts Your 6" Caliper Into A Large Measuring Device Cal-X-Tender readily attaches to your caliper (two set screws and 2 clamp screws) In no way detrimental to your caliper which may be quickly removed or left assembled as a perm