Kent-Moore Tools Kent-Moore J-45689 A/C Quick Joint Tool for GM. The A/C lines are held together using a clip that latches around the line. J-45689 has two pins that slide into the clip to release the locking mechanism. The tool has a handle with a 90 degree bend to allow access with very limited space. Conventional tools will not release these A/C quick-connect couplings. Availability: Drop ship from factory. Usually ships within 2-3 days. Ships via UPS.