Ratchet combination gear wrench in metric sizes Standards: ISO 1711-1 and DIN 3113 Material: High performance alloy steel Open end angle 15º with a slimmer head for improved accessibility Ratchet in the ring for high productivity application 12 points Dynamic-Drive Profile provides longer life for screws and nuts 5º action angle Switch for quick change of, right or left Bigger and bi-directional size marking for easy identification Chrome plated Micro Matt finishing provides high quality surface.