Sockets are ideal for impact drivers?? wrenches</br>High strength for extreme torque applications</br>Sockets are made from heat treated alloy steel</br></br>Product Description</br></br>Makita T-02369 eight piece 1/4 inch 6-point Impact socket set. High quality materials use in manaufacturing.</br><br/>http://www.amazon.com/gp/product/B00L2E2LHI