The Proto B942959 is a tether-ready, 12-point 1/2-inch drive socket sized at 1-1/8 inch, featuring the patented TorquePlus internal drive design. TorquePlus engages fastener flats rather than corners, using a radius-corner geometry that distributes contact stress over a larger area to minimize slippage and reduce fastener rounding — ideal for stubborn, damaged, or soft-material fasteners.
Built for professional MRO and industrial applications, this socket's tether-ready design supports tool-tethering systems for drop prevention in elevated or safety-critical work environments. The 12-point configuration allows for greater positioning flexibility in tight spaces, making it a reliable choice for demanding fastening tasks.