Sure-drive jaws which apply torque to the flat of the nut rather than the corners to avoid rounding off - Forged chrome vanadium for strength & durability - Matt chrome plated for corrosion protection - Extra capacity jaws - up to 18% wider than standard patterns - Metric & imperial graduations for accurate jaw pre-setting - Soft grip handle for comfort & control. - Capacity: 29 mm - Length: 200 mm