【Premium Materials】: The square head brake adapter is made of heavy duty, heat treated chrome vanadium steel with a corrosion resistant black oxide finish and are nickel/chrome plated to resist corrosion, eliminating the risk of rust and extending tool life for industrial, mechanical or construction work. 【What You Get】: Our impact socket adapter reducer kit includes 1/4" to 3/8" adapter, 3/8" to 1/4" adapter, 3/8" to 1/2" adapter, 1/2" to 3/8" adapter, 1/2" to 3/4" adapter, 3/4" to 1/2" adapter. These powerful impact adapter reducers are designed for impact drivers and most other tools to convert the sizes of driver sets in your kit for any home improvement or automotive work. 【Easy to Store】: All adapters are organized in a clear plastic case to protect the components and easy to carry, organization and storage, keep areas more clean and tidy, convenience for your work. Dimensions are printed on the surface of each product, you can identify the model more easily. 【More Convenient】: