3/8" Dr. Standard Impact Sockets, 3/8 in Drive, 9 mm, 6 Points

Patented Wright Drive® design 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.