Socket inserts from 5 to 13 mm, along with extensions of 50, 100, and 150 mm. Nuts and screws are securely held in channels while working with extensions thanks to the magnetic insert. Standard bits (25 mm) made from chrome-silicon-manganese-molybdenum alloyed special steel: TX 8 to TX 45 (with a front-side hole), HX sizes 2.5 to 6, PH 1 and 2, as well as slotted 5.5 mm. Other contents include a universal joint and a female hex/square adapter. Except for the standard bits, all parts are nickel-plated twice and matt chrome-plated once. Packaged in a sturdy steel box (powder-coated). Material: chrome-vanadium steel, 2x nickel-plated, 1x matt chrome-plated. Handle: TPR. Precision mechanic set with 1/4-MICRO compact ratchet. Multiple teeth (72 in total) engage simultaneously, transmitting an extremely high torque. Features a release mechanism: releasing the insert tools with the push of a button. Nuts and screws are securely held in channels while working with the magnetic insert.