Grey Pneumatic impact sockets are designed for professional tool users. They are engineered specifically for use with impact tools using the most up to date industrial specifications. This socket set contains the following male sizes of 3/16 inch, 1/4 inch, 9/32 inch, 5/16 inch, 11/32 inch, 3/8 inch and female sizes of 1/4 inch, 9/32 inch, 5/16 inch, 11/32 inch and 3/8 inch. -- We ship APO,FPO,International and do combine shipping. Check out my other items! Sign up for my email newsletters by adding my eCRATER Store to your Favorites