•How to Grip : Open, Zip fastener Type, Pinch, Zip fastener Type •Operation Method : Double Acting, Single Acting Type (Normally Closed), Single Acting Type (Normally Open) •Main Body Shape : Special Shape For complete product overview and details on CKA, CKB, and CKD Series Slim Chuck see the sections below: Configured Specifications  Download How Grip Chuck Type of Opening Number of Fingers 3 Pcs. Type Main Body Operation Method Normally Close Main Body Shape Special Forms Environment, Applications Standard Additional Function No Stroke Adjustment Mechanism No Cylinder Dia.(φ) 16 Rod Diameter(φ) 9 Action Stroke(mm) 6 Option Normally Close