Manuals Brands Harbor Freight Tools Interior Auto Accessories Harbor Freight Tools Interior Auto Accessories Manuals ProdManuals has more than 3 Harbor Freight Tools Interior Auto Accessories manual(s) covering 3 model(s). 1 2 Models Document Type 1 12V Auto Heater / Defroster with Light 12V 1/2 in. Emergency Impact Wrench 2 2 in. LED Lit Boost/Vacuum Gauge