Features and Benefits: Deep length 6-point impact socket; Built specifically to address the needs of the professional technician using hand tools, cordless impact tools and air tools; The duo socket provides one socket for all applications; Socket has a 1/4" drive and is 6-point; Size markings are hard stamped into the socket for easy identification; 1/4" Drive x 7mm Deep length duo impact socket. The thin wall design of chrome hand sockets are combined with the strength and durability of Grey Pneumatic impact sockets to create the Duo-Socket.