The Proxxon 1/2" socket wrench insert with a key size of 19 mm is a high-quality tool designed for professional use. Made from robust chrome-vanadium steel (CrV 3), this socket insert offers high strength and durability. The insert features an internal square drive that allows for precise power transmission. With its special profiling, the insert is ideal for working with external hex screws. The compact design and thoughtful shape facilitate handling and access to hard-to-reach areas. This socket insert is an essential tool for mechanics, craftsmen, and DIY enthusiasts who value quality and reliability.

• Made from high-quality chrome-vanadium steel (CrV 3) for increased durability
• Internal square drive for precise power transmission
• Suitable for use with external hex screws.