EFFORTLESS: Large depth spiral twist pattern, suitable for removing rusty hexagon socket screws, high hardness, labor saving. WIDE RANGE OF APPLICATIONS: widely used in construction industry, l automotive repair industry, home maintenance, etc. SUPER TORQUE: Spiral interface for super torsion, various specifications can work in different situations, improve work efficiency. HIGH-QUALITY MATERIALS: Chromium-molybdenum steel forging, general secondary high temperature quenching, more durable, scratch-resistant, rust-proof. LONG LASTING: Made of chrome molybdenum steel, corrosion resistant, wear resistant, greatly improving service life, durable and easy to remove damaged nuts. Condition: 100% Brand New Item Type: Socket set for removing nuts Material: chrome molybdenum steel Color: as pictures shown Socket type: 17mm/0.67in, 19mm/0.75in, 21mm/0.83in, 22mm/0.87in Plug length: approx. 50mm/2.0inch Package List: 4 x Nut Remove Bushing 1 x Crow Bar Note: This does not include other things,