This 12-piece multi-coloured deep socket set from Neilsen is designed for professional quality. The sockets are hardened and tempered with a chrome finish for enhanced corrosion resistance, making them ideal for engineers, mechanics, and DIY enthusiasts. The set features a 1/4 inch drive size and includes sockets ranging from 4mm to 13mm, with sizes for 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, and 13mm. The set is supplied on a convenient storage rail.