1、WEAR RESISTANT MATERIAL: Each bolt screw extractor is made of high hardness hascrome, complex processing makes the extractor stronger. Each surface is accurately machined for excellent durability and erosion resistant 2、FLEXIBLE AND CONVENIENT: Extended screw extractor with 3/8in drive 2 in 1 function, can be directly connected to pneumatic or power tools without connecting to a socket. Compared with the old version, this is more convenient to use and can meet a variety of needs 3、POWERFUL AND STRONG: The screw remover kit has a powerful left hand screw design that provide extra grip and faster tapping speed 4、FAST AND EFFICIENT: Easy out stripped screw remover kit can remove damaged screws, bolts, studs, fittings and threaded tubing for faster and more efficient rotation 5、APPLICABLE SCENARIO: Standard 3/8in screwdriver design make the screw extractor kit compatible with hand tools, electric or pneumatic tools. Whether mechanical maintenance or daily use, can solve your various work needs Item Type: 3/8 Drive Screw Extractor Set Material: Hascrome Use: Used for taking out broken screws, sliding screws, water pipe screws, etc. 7 x Screw Extractor 1 x 1/4in To 3/8in Adapter Rod 1 x 1/2in To 3/8in Converter Head 1 x Storage Box