Feature:1. Large depth spiral twisted pattern, suitable to remove rusty hex socket screws, high hardness, laborsaving.2. Spiral interface for super torsion, diverse specifications allow working in different situations, improve work efficiency.3. Widely used in the construction industry, auto repair industry, home maintenance, etc.4. Chrome‑molybdenum steel forging, overall secondary high temperature quenching, more durable, scratch‑resistant, anti‑rust.5. Made of chromium molybdenum steel material, corrosionresistant, wear resistance, greatly improving the service life, durable and easy to remove damaged nuts.Specification:Conditon: 100% Brand NewItem Type: Nut Remover Socket Set Material: Chrome-Molybdenum SteelColor: As Pictures ShownSocket Type: 17mm/0.67in, 19mm/0.75in, 21mm/0.83in, 22mm/0.87inSocket Length: Approx. 50mm/2.0in.Package List:4 x Nut Remove Socket1 x Crow Bar