SMC CQM Series Compact Guide Rod Cylinder, CDQMB40 30 A93 Telescopic Cleaning Tool so both the inner and so both the inner and outer rings can be used with tight fits Specification item model symbol Specification information With auto switch Without auto switch Mounting support type B Basic type (with bosses on both sides) tube inner diameter 32 Bore size 32mm cylinder stroke 50 cylinder stroke 50mm how it works S Dandong: Forward Rod end screw shape rod end male thread rocking support bracket no metal fittings rod end bracket no metal fittings auto switch Without auto switch Auto switch additional symbol 2 with or without Custom made specifications standard