apparatus is properly positioned relative to the object to be cut by means of a casing collar locator and an igniter is fired which in turn activates a gas generator pressure from the gas generator axially displaces a slidable piston having one or more wedges pivotally connected thereto movement of the piston both pivots and extends the wedge thereby bringing the wedge into contact with the object to be cut and anchoring the apparatus relative to the object to be cut the pressure generated in the gas generator is communicated through a passageway in the slidable piston and forces a chemical cutting agent into a chamber containing a reactant the reaction of the chemical cutting agent and reactant increases the pressure and temperature within the chamber thereby displacing along the axis a second slidable piston movement of the second slidable piston exposes radial exhaust orifices thereby allowing the reacting elements in the chamber to escape with great velocity and to contact the object to be cut application_number US 88506278 A description referring now to fig1 a the uppermost part of the tool of the present invention includes a 34 ccl 34 cable head assembly 10 and a wireline 12 34 ccl 34 meaning a conventional casing collar locator connected to the ccl is the firing sub adaptor 14 which in turn connects to the gas generator sub 16 the function of the gas generator sub 16 is to hold the gas generator grain 15 or.