The Desco Tools 6-Pc Screw Extractor Set is made in the U.S.A. and is good quality. It includes a vinyl storage pouch, though for the high price a box would be nice. I could not take the chance with an inferior Chinese set at one quarter the price. It was purchased specifically for the smallest No.1 extractor to remove a carburetor screw where the Philips pan-head had snapped off. The tiny m3x0.5 screws attach butterfly valves to the choke shafts. Making matters worse the screw was installed ...