The Proto 16mm 12-Point Socket features the TorquePlus™ drive configuration, which engages fastener flats rather than corners. A radius-corner internal design shifts contact stress away from corners and distributes it over a larger surface area, minimizing slippage and reducing fastener rounding — ideal for stubborn, damaged, or soft-material fasteners.
Tether-ready (TT) construction makes this socket compatible with tool tethering systems for drop-prevention in elevated or safety-critical work environments. The 3/8-inch drive and 1-1/8-inch length suit a wide range of professional mechanical and maintenance applications.