A heat exchange system with a glycolwater loop to exchange heat with ambient air, and a second glycolwater loop that is in a heat exchange relationship to the ground and a system of refrigerant based ground source heat pump systems. The tool cartridge chassis is pivotably attached via a pin within a recess formed in boring bar; an adjustment screw is provided to a first side of the pivot axis, the screw being threaded into the cartridge chassis and situated in abutment with a surface of the bar. A resultant reliable axial length of the eye is determined using the axial lengths from the AS and RS modes, where available and where possible, or the process is ended without a resultant axial length. The first clamping driver drives the first clamping members to clamp the fixture and the workpiece. An effective cross sectional area of the engagement element is set at a minimum area which has an engagement capacity capable of transmitting a maximum torque inputted from the engine when the engagement element receives a maximum pressure controlled by the first engagement control actuator.