The 17-piece PROJAHN Xi-on 3/8" socket wrench set is ideal for opening up to 85% rounded screws and nuts. The set comes in a sturdy metal case, perfect for transport and storage. Made from high-quality chrome-vanadium steel, it guarantees durability and reliability. This set allows for manual operation for flexible applications. The drive is via a 4-square internal according to DIN 3120 / ISO1174 standard, with a size of 9.5 mm (3/8"). The drive is secured by a ball catch groove, while the output features an external 6-point. , , , Product information, , Opens up to 85% rounded screws and nuts, In a sturdy metal case, Made of chrome-vanadium steel, Manually operated, Drive: internal 4-square according to DIN 3120 / ISO1174, Drive sizes: 10 [3/8"], Drive locking: ball catch groove, Output: external 6-point, , Scope of delivery:, , 11x socket inserts (8 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 mm), 2x extensions, 75 mm + 150 mm, 1x 3/8" 72 tooth, 1x universal joint, 1x sliding handle, 1x ejector