Steelman Pro is a tool set consisting of 16 keys designed for automotive mechanics. This set is essential for working with non-standard nuts, including locking and anti-theft ones. Using the keys, a mechanic can remove not only standard fasteners but also less common ones like star-shaped, slotted, multi-sided, and other modifications. The keys are made from heat-treated chrome vanadium steel, which is resistant to mechanical stress and corrosion. It allows working even with rusty and stuck nuts without damaging the main tool. The set is suitable for use with both standard wrenches and impact wrenches with 7/8-inch and 13/16-inch drives.