The PROJAHN 54-piece Xi-on socket wrench set combines 1/4" and 1/2" drives for maximum versatility. Made from high-quality chrome vanadium steel and housed in a sturdy metal case, it offers durability and security. Ideal for up to 85% rounded screws and nuts, it is hand-operated and features a ball catch groove for a secure grip. Perfect for professionals and DIY enthusiasts who value quality and reliability. Get ready for any task with the PROJAHN 54-piece Xi-on socket wrench set., , , Product Information, , When nothing else works, Xi-on comes to the rescue!, Extremely innovative: Revolutionary Xi-on special profile opens up to 85% rounded screws and nuts, Grips where conventional socket inserts fail, Opens all common metric hex, 12-point, and multi-tooth nuts & screws, Recommended by the editorial team of "Technik und Motor" at FAZ, 54 Xi-on tools (metric) in a sturdy metal case, , , Scope of delivery:, , 11 Xi-on socket inserts 6.3 / 1/4" 4 - 13 mm, 1 fine-tooth ratchet 6.3 / 1/4" 72 teeth, 2 Xi-on extensions 6.3 / 1/4" 50 · 100 mm, 1 Xi-on universal joint 6.3 / 1/4", 1 Xi-on sliding handle adapter 6.3 / 1/4", 1 socket handle 6.3 / 1/4", extractor, 2 Xi-on bit socket inserts for slotted screws 6.3 / 1/4" 5.5 · 7 mm, 2 Xi-on bit socket inserts for Phillips screws PH 6.3 / 1/4" PH 1 · 2, 6 Xi-on bit socket inserts for internal hex screws 6.3 / 1/4" 3 - 10 mm, 15 Xi-on socket inserts 12.5 / 1/2" 10 - 32 mm, 2 Xi-on extra deep socket inserts for spark plugs 12.5 / 1/2" 16 · 21 mm, 1 fine-tooth ratchet 12.5 / 1/2" 60 teeth, 2 Xi-on extensions 12.5 / 1/2" 125 · 250 mm, 1 Xi-on universal joint 12.5 / 1/2", 1 Xi-on sliding handle adapter 12.5 / 1/2", 4 angle pin wrenches 1.27 · 1.5 · 2 · 2.5 mm