??【Upgraded Version】: In addition to 10 different sizes of drills and extractors, 3 slotted screws, 3 Torx screws, 4 Phillips screws and 1 quick bit holder have been added, which make them compatible with all kinds of drills and remove any type of screws and bolts.,??【Premium Quality】:It is made of quality high speed alloy steel 4341, high strengthen and durable, which ensures it is tough enough to easily remove those damaged screws and make your work more efficiently.,??【Easy Operation】: Two simple steps to remove all stuck screws or bolts in a few seconds. Step One to choose a drill bit smaller than the damaged screw, Step Two to use the same size extractor to take out reversely use your electric hand drills.,??【Portable & Well-packaged】: Comes with a little storage tool box to ensure you will not lose any one of them. What's more, you can take it anywhere with you.,??【Warm Tips】: Using the eletric hand drill and in low speed when stripping the damaged screw can avoid getting hurt.