Steel vanadium chrome.
Equipped with a mechanical locking device to hold the socket in place.
Highly resistant insulating materials.
Bi-material non slip handle with soft touch for a good grip.
Large button for reversing the direction of rotation.
Designed for use with insulating gloves.

Additional markings =>I<= for interchangeability of accessories (wrenches, sockets, extensions) from different manufacturers and mechanical strength greater than 50kg.