... servicing, workover, and light drilling 2. Double ram, forged-steel body 3. API 16A Standards, NACE Blowout ... or other tubing, and seal it. B) pipe ram, which close around a drill pipe, restricting flow ... pipe and the well bore. C) shear ram, which cut through the drill string or casing ... visual position indicator and manual locking actuator. Each ram actuator is equipped with a manual locking handle. ...