The Whiz Twister Screwdriver has a mechanism inside the handle that allows a person to twist (or untwist) multiple strands of wire together. One simply inserts the wires as far as possible into the handle then turns the handle to twist them tightly together. The twisting mechanism accommodates different size wires, from 18 to 10 gauge. Available in three models (standard, Phillips, and a small "pocket-clip," the tool does the job faster and neater than pliers and without scarring the wires.