Wireline & Mechanically Set Bridge Plugs are used to isolate zones for temporary or permanent abandonment. These drillable Bridge Plugs set securely in any hardness casing. A ratchet lock ring stores the setting force in the Bridge Plug. The one piece packing element and metal back up rings combine for a superior seal. The case hardened, one piece slips virtually eliminate premature setting, yet can be easily drilled out. They are available for 4 1/2″ through 16″ casing.