Bore Size 12mm Thread M Thread:8~25 Bore, Rc: 32 Bore Stroke 20mm Finger Option 1 (Tapped on Upper and Lower Faces) Stroke Adjusting Unit No Scraper No Auto Switch No Switch Lead Wire or Prewired Connector 0.5m (Or None in the Case of No Switch) Number 2 pcs. (Or None in the Case of No Switch)