The Proto B943070 is a tether-ready, 12-point 1/2-inch drive socket sized at 7/8-inch with an overall length of 1-9/16 inches. It is ideal for use on stubborn or damaged fasteners, as well as fasteners made from soft materials, thanks to its multi-point contact geometry.
Featuring Proto's TorquePlus™ design, this socket engages fastener flats rather than corners, using a radius-corner profile that distributes contact stress over a larger surface area. This high-performance drive configuration minimizes fastener rounding and slippage, delivering reliable torque transfer even in demanding MRO and industrial applications.