The Sealey 12 Piece 3/8" Drive Deep Lock On Hexagon Socket Set is a professional-grade socket set designed for tackling worn, damaged or rounded fasteners. Manufactured from hardened and tempered Chrome Vanadium 6142 steel, this 12-piece metric set provides the strength and durability required for daily workshop use. The standout feature of this socket set is the specially machined flutes in the walls of each socket, enabling reliable grip on fasteners that are up to 85% rounded. This Lock-On technology not only prevents further damage to worn or rusted fixings but also provides added strength when dealing with stubborn bolts and nuts that conventional sockets struggle to grip. The deep socket design allows access to recessed fasteners and longer threaded studs. Each socket features a fully polished mirror finish for corrosion resistance and includes a knurled ring for enhanced grip when working with oily fingers. The set covers a comprehensive range of metric sizes from 8mm to 19mm and is supplied on a socket rail for organised storage and quick size identification. Ideal for automotive mechanics, plant maintenance engineers and general engineering applications where damaged fasteners are commonly encountered. Features and Benefits: • Lock-On flutes grip rounded fasteners up to 85% worn • Deep socket design for recessed and long-threaded applications • Knurled ring provides extra grip in oily conditions • Mirror polished finish resists corrosion • Supplied on rail for organised workshop storage • Lifetime guarantee for long-term reliability Specifications: Brand: Premier Configuration: 6-point Lock-On™ Socket Contents: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm, Socket Rail Depth: Deep Nett Weight: 0.90kg Qty: 12 Type: 3/8"Sq Drive - Metric