Customer service is part of the quality and reliability of the product, at least for me. I've been watching this item on Revain for several months and during that time have attempted to contact the seller maybe half a dozen times to inquire about its similarity and compatibility with the Chicago Pneumatic CP-9361. I've tried Revain's Customer Questions and Answers several times. No Answer. I contacted Revain regarding this and they gave me the seller/manufacturer's email address and phoneβ¦