1、The kit contains 8 combination wrenches of different specifications, suitable for different maintenance scenarios. 2、Made of high‑quality chromium vanadium steel material, integral heat treatment, with high hardness and high torsion. 3、The exterior is fully polished and electroplated, the appearance is glossy and not easy to wear or rust. 4、These combination wrenches are exquisite in workmanship, durable in wall thickness, strong in endurance, and not easy to crack. 5、The wrench can be used with double heads and is widely used in the auto repair industry, component assembly and daily maintenance, etc. Item Type: Wrench Product Material: Chrome vanadium steel Product Model: SK-318-8 Product Quantity: 8pcs Surface Treatment: Polished chrome plating Specification: 8mm / 0.31in, 10mm / 0.39in, 11mm / 0.43in, 12mm / 0.47in, 13mm / 0.51in, 14mm / 0.55in, 17mm / 0.67in, 19mm / 0.75in System: Metric 8 x Wrenches 1 x Storage Bag