The Bauer 4V Cordless ¼-Inch Screwdriver from Harbor Freight costs just $19.99. It weighs under a pound but produces a competitive 42.7 inch-pounds of torque (twisting force). On the face of it, the Harbor Freight screwdriver is a very attractive option. People sometimes wonder whether Bauer tools are worth buying, but this affordable mid-range power tool brand consistently scores well with owners. In the case of the cordless screwdriver kit, over 2,000 customers give it a 4.6-star rating, and 95% would recommend it.