1" bolt baseplate feedthrough with adaptor for 34" dia. compression quickfit fitting, complete kit contains 1" bolt baseplate feedthrough (SS-304 for durable thread), compression screw, brass compression bush and washer, and o-ring. This kit is specially designed for making positive earth connections to sputtering magnetrons via vacuum chambers. Suitable for use with all magnetrons with 34" diameter shafts, e.g., Lesker Torus, Moorfield Magitron, and models from AJA and Angstrom Sciences.