The Proto B943974 58-piece combination socket set features 3/8-inch drive, 12-point sockets ideal for use on stubborn, damaged, or soft-material fasteners. The proprietary TorquePlus™ design allows quick and easy socket engagement to the fastener flats rather than the corners, minimizing slippage and reducing the risk of rounding fasteners.
TorquePlus™ technology employs a radius-corner internal design that shifts contact area and stress away from fastener corners, distributing load over a larger surface area for high-performance torque application. This makes the set well-suited for demanding industrial, MRO, and professional mechanical applications.