This Dunnet Tools Four Piece Socket Adaptor Set Allows You To Change The Ratchet Driver Up Or Down A Size. You Can Change Your 1/4" Inch Driver To Suit 1/2" Inch Sockets If Needed, Saving The Need To Purchase Many Different Socket Sets. This Adaptor Set Is Ideal If You Do Not Have The Right Size Ratchet To The Size Socket In The Correct Size Drive. Simply Connect The Right Adaptor Onto The Ratchet, And Then You Can Select A Different Sized Socket Drive, To Use Instead. These Are Also Helpful If You Require The Use Of A Bigger Ratchet For More Leverage On A Tight Bolt. These Socket Adaptors Are Made From A High Quality Chrome Vanadium. This Ensures They Will Be Long Lasting And Incredible Durable. They Also Feature A Polished Chrome Finish Which Increases The Resistance Of The Item Against Rust And Corrosion. This Four Piece Socket Adaptor Set Includes The Following Sizes: 1/4" Female X 3/8" Male, 3/8" Female X 1/2" Male, 3/8" Female X 1/4" Male And 1/2" Female X 3/8" Male. Technical Specifications: This Is A Four Piece Socket Adaptor Set With 4 Different Combinations For Drive Sizes. It Includes 1/4"F X 3/8"M, 3/8"F X 1/2"M, 3/8"F X 1/4"M, 1/2"F X 3/8"M. These Adaptors Are Made From Chrome Vanadium And Feature A Polished Chrome Finish. Included Is A Rail For Storage Of The Items., Manufacturer: Dunnet Tools