Features:[UPGRADE BOLT EXTRACTOR SET]Compare with the old Extractor, the new screw extractor set no needs to put a socket on the hexagon head connecting the wrench to use. It is more convenient and fast. Standard 3/8-inch drive design to let the screw extractor set be compatible with hand tools, power, or air tools [ MULTI-SIZE] Extractor Set from 1/8 inch (3.5mm) to 7/8 inch (23mm) by 1/32 INCH increment and comes with a storage case. [QUALITY] Each extractors are Made of high hardness chrome-molybdenum steel rust-resistance with heat treatment for superior durability. High visibility laser-etched size for quick identification. [ ADVANTAGE ]The internal thread with reverse spiral design to bite down to provide maximum. Each surface is precision machined and resistant to corrosion. Internal left-handed spiral design for extra grip and faster tapping. [APPLICATION] - The easy out bolt extractor set can be used to remove broken studs, bolts, hexagon socket screws and fittings, or it can be used with a square drive wrenches for a range of applications. Material: steel colour: black Package Contents: 25 x Screw Extractor 1 x converter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.