Manuals Brands Harbor Freight Tools Drivers Harbor Freight Tools Drivers Manuals ProdManuals has more than 7 Harbor Freight Tools Drivers manual(s) covering 7 model(s). 1 4 Models Document Type 1 1/2 in. Heavy Duty Electric Impact Wrench 18 Volt 1/2 in. Cordless Variable Speed Impact Wrench 18 Volt 1/4 in. Cordless Variable Speed Hex Impact Driver 12 Volt 1/4 in. Lithium_Ion Cordless Hex Impact Driver 18 Volt 1/4 in. Cordless Impact Driver 4 4.8 Volt 1/4 in. Cordless Screwdriver Kit 4.2 Amp Heavy Duty Drywall Variable Speed Reversible Screwdriver