The US PRO Tools 3/8" dr 14pc Drain Sump Plug Key Set, Engine Gearbox Diff 3225 is a high-quality set of tools designed for removing and installing drain plugs in cars, vans, and light commercial vehicles. Made from durable Chrome Vanadium Steel (CR-V) with a hardness rating of HRC 43-48, these keys are corrosion-resistant and built to last. The set includes 14 pieces with a 3/8 inch drive size, making it suitable for various vehicle makes and models. Additionally, the keys come in a storage case for easy organisation and portability. Perfect for professionals and DIY mechanics looking for a reliable and heavy-duty solution for their oil change and maintenance needs.