3/8" Dr. Universal Impact Sockets, 3/8 in Drive, 7/16 in, 6 Points

Patented Wright Drive® distributes contact over a larger surface area for greater gripping power and strength. Oiled black oxide finish. Forged and machined for best fit and unyielding strength. Precision heat-treated and tempered for optimal hardness, ductility and durability. Easy to read stamp pattern in order to quickly determine opening size.