Specification: 13 (Clean Series, Vacuum Suction Type, Special Treatment on Guide), Bore: 12mm, Thread: M Thread: ø6 to ø16 Bore; Rc: ø20, ø25 Bore, Symmetric Type: L (Symmetric Type), Stroke: 30mm, Adjuster: C (Metal Stopper, Both Ends), Functional Option: Standard Type, Auto Switch: M9B--Solid State, Gen. Purpose, 2 Wire, Horizontal