Based on our own experience, these sockets are an excellent addition to any industrial and scientific tool collection. The black oxide finish offers durability and corrosion resistance, making them suitable for heavy-duty use. The sockets come in various sizes and fit snugly on bolts and nuts, giving optimal torque with minimal slippage.However the socket set may be too pricey for those on a budget, which is the only downside. Overall, we highly recommend these sockets for professionals in need