Combination wrench, long type in metric sizes Standards: ISO 691, ISO 3318, ISO 1711-1 and DIN 3113 Material: High performance alloy steel Open end angle 15º with a slimmer head to get more accessibility Ring end angle 15º for knuckle clearance or better grip 12 points Dynamic-Drive Profile provides longer life for screws and nuts Chrome plated Micro Matt finishing provides high quality surface For sizes 41 mm to 60 mm please see 1952M