The Pittsburgh 8pc Hex Bit Sockets are a high-quality set of automotive tools designed for metric measurements. Made with durable chrome vanadium material, these standard socket bits come in sizes ranging from 3mm to 19mm, with a 4mm size missing. The set includes a holder for easy storage and organization, making it a convenient addition to any mechanic's tool collection. With a focus on precision and reliability, these Pittsburgh Hex Bit Sockets are a must-have for any automotive professional or DIY enthusiast.