The Auto-Set was developed to assist in running casing and liners in applications where hydraulic pressure cannot be induced to the bit, or where circulation through the casing is impossible. By using a high tensile spring design, the tool is reset to the open position by reducing weight on bit, rather than hydraulic pressure. This tool has been used in SAGD, polymer flood, slotted liner, and lost circulation applications to excellent results, and can be used in any size or application that does not require the tool to be drilled out. The Auto-Set is also perfect for Single and Multi-Stage packer completions, as it provides down hole solutions without The tool is also sealed to prevent the production of sand, cuttings and paraffins through the tool, during the run as well as during production.