Strong and SturdyThe drive socket set is forged from high-quality steel, and the whole is subjected to high-frequency quenching treatment. The hardness is greatly improved, and it is impact-resistant and durable. The surface of the impact socket is treated with carbon black phosphating, which is anti-rust and anti-corrosion, and has a longer service life. Various Specifications10 Pcs x 1/2" deep metric impact sockets: 10 - 12 - 13 - 14 - 15 - 16 - 17 - 19 - 22 - 24mm, impact socket depth: 78mm, to meet every need and scenario. The dimensions of each impact socket bit are printed on the socket itself, making them easy to identify when you take a socket out of the storage box. 6 Point DesignThe deep square drive tool kit has a unique 6-point design, which increases the contact area between the socket and the fastener, and the locking force is firmer, reducing wear and preventing slippage. The bolt lock hole design prevents the impact driver from falling off, making it safer and smoother to use. Practical AccessoriesThe impact driver wrench set is equipped with a impact driver socket adapter, which is convenient for matching more types of electric drills. The deep socket set is equipped with a customized toolbox to avoid cluttered and lost sockets. The box is small and easy to store and carry. Widely UsedThe interface of 1/2 inch drive impact socket set is square, which can be used on various tools such as electric hand drills, impact drill, wind batch, ratchet wrenches and so on. The metric sockets are widely used in automobile maintenance, electromechanical maintenance, household maintenance, industrial production and other scenarios.