Multi-Size: The screw extractor sets ranges from 1/8 inch (3.5mm) to 7/8 inch (23mm). It has 1/32 inch increments and come with a storage box, which is very to store these screw extractor Powerful: This bolt extractor is designed with internal thread that has reverse spirals grooves designed can be occluded to provide maximums. Each surfaces is precisions machined and resistant to Upgraded Bolt Extractor Kit: Compared to the old extractor, this new screw extractor kit does not require the socket to be placed on the hexhead before spanners is used. It's more The 3/8 inch drive design makes the screw removal device suitable for hand tools, electric or pneumatic tools Chromium Steel: Each screw extractor is high hardness chrome steel and has been heat-treated for durability. Every etching size is very clear with high visiblity for quick identification Wide Application: This bolt remover is easy to remove the and stripped screws, bolt and slip teeth, or can be used with a variety of square drive wrenches for a wide ranges of applications, Manufacturer: BOYANDM