Hydraulic pipe work kits are available to up date machines to work with Rototop attachments ,with the growing availability of 360 degree rotation attachments such as the Rototop ,kits are available to fit proportional rotation circuits to give thumb wheel control of rotation function ,double acting conversion kit to turn single acting hammer lines in to into double acting lines (with the option to switch back to hammer )to work either the grab arm option on the Rototop…