This Proto 12-piece metric socket set features 6-point box design that applies up to 15% more torque to fasteners while significantly reducing the risk of rounding. Constructed from alloy steel with a nickel chrome finish, the set includes sockets ranging from 4 mm to 14 mm to cover a wide range of fastening applications.
The 1/4" square drive set comes organized on a socket bar with socket clips for convenient storage and quick access. With 12 sockets per bar and a metric measuring system, this set is ideal for automotive, industrial, and MRO applications requiring precise, reliable torque delivery.