
Carbon Steel Features embossed markings for easy size identification For use with a hand ratchet or breaker bar, etc. Sizes: 1/4" Dr: E4, E5, E6, E7, E8. 3/8" Dr: E10, E11, E12, E14, E16. 1/2" Dr: E18, E20, E22, E24. Chrome plated surface is corrosion resistant. Comes with a tool box for easy storage and transportation. Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.