the use of sleeve 100 to regulate the number of jetting orifices 80 81 that are used during the jetting operation the sleeve 100 is an annular sleeve that can have any desired number of transverse channels 101 102 in this fashion the tool body 73 can provide a large number of jetting orifices 80 81 such as 4 6 8 etc in number the user then selects a sleeve 100 having as many or as few lateral channels 101 102 as desired thus for example if the tool body provides eight circumferentially spaced radially extending jetting orifices 80 81 e g sixty degrees apart a sleeve 100 can be selected that only provides two lateral channels 101 102 e g 180 u00b0 apart even though the tool body provides eight jetting orifices only two would be used in the jetting operation if the sleeve 100 provides two lateral channels 101 102 the sleeve 100 could be a removable component of the apparatus 72 that would be custom selected before operation to give the desired location and number of channels 101 102 and thus jetting orifices 80 81 that are used in a particular job the following table lists the parts numbers and parts descriptions as used herein and in the drawings attached hereto parts list______________________________________part number description______________________________________10 pulling and releasing tool11 upper end portion12 lower end portion13 main body14 inner open ended bore15 threaded sub16 threaded connection17 lower external threads18 internal bore19 upper end20 lower end21 main body wall22 inside surface23 annular recess24 annular shoulder25 annular shoulder26 thin side wall27.