I am redoing the wiring to an exterior A/C compressor and to/from the exterior disconnect box (made by GE). The disconnect box instructions say to torque the lugs to 32-35 in-lb. I've ruined several lugs trying to do this. They have a single slot that is so wide that I can't find any driver bit that engages the slot securely, definitely not enough to accommodate that kind of torque. Is there a special tool for this or am I missing some trick of the trade? Also, should I be using a torque wrench also on the connections to the A/C?