• Patented U-shaped design • Open end angle 15° with a slimmer head for more accessibility • Large and one-directional size marking for easy identification • Chrome plated micro-matte finishing provides high quality surface • High-performance alloy steel • Less wear on fastener with the large contact surface area of the jaw • Optimised legibility and identification with high-clarity imprint • Standards: ISO 691, ISO 1085, ISO 10102 and ISO 3318 • SB: retail pack on a plastic info card