Set of sockets and extractors for broken bolts, damaged nuts and broken studs. The 18-piece set includes a set of 3/8 "sockets for unscrewing damaged / machined nuts, a set of extractors for broken screws and a set of 1/2" sockets for removing broken pins. Product features: set made of high quality CrV steel allows you to easily and in a non-invasive way to unscrew damaged nuts, bolts with a damaged head, as well as remove broken pins and screws sockets for machined screws in sizes from 10 to 19 mm Pullers for broken screws from M3 to M18 sockets for broken pins in sizes 6-12mm the whole set is packed in a handy case made of durable plastic Technical Specifications: Material: CrV tool steel Number of items in the set: 18 Sizes of 3 \ 8 ”sockets for machined screws [mm]: 10, 11, 12, 13, 14, 15, 16, 17, 19 Broken bolt extractor sizes: M3-M6, M6-M8, M8-M11, M11-M14, M14-M18, Sizes of 1/2 ”sockets for broken pins [mm]: 6, 8, 10, 12