General description 4 Pack Adjustable Heavy Duty Nut Splitter is designed for removing rusty, damaged, and stuck nuts. This full set is suitable for dismounting nuts of various sizes: 9-12MM, 12-16MM, 16-22MM, and 22-27MM. Technical specifications Material: Heavy duty alloy steel Blade material: Bearing steel Surface: Waterproof and rustproof Heat treated screws for enhanced hardness Usage Effectively cuts rusted, cross-threaded, or round nuts Designed to avoid damaging bolt threads