The ACT Model A Premium Bridge Plug is a high pressure plug constructed of drillable cast-iron that uses Alpha Big Boy setting sleeves and adapter rods. It can be set on any GO or Baker type wireline pressure setting tool or pipe/coil tubing with an ACT Hydraulic Setting Tool. When set, opposing slips are located above and below the rubber packing elements. The packing elements are contained by rocker action back-up rings that eliminate extrusion of the elements at high temperatures and pressures. A one way ratchet lock ring retains the setting force applied to the opposing slips and rubber to maintain a pressure tight seal. One-piece slips keep the plug securely set in premium grade casings including P-110. The slip wickers are sharp and hardened to the wicker depth only allowing the slip to grip the casing wall while maintaining a soft cast-iron inside for easier drilling. The upper slips remain in the set position during the drilling operation to allow gas pressure to equalize. This plug is ideal for zone isolation where squeeze cementing, fracturing or plug abandonment operations are being performed. Optional packing systems of Viton or Aflas are available on special order. Special application tools can be custom designed to fit your specific needs.