The Urrea 12-point socket is made of high-quality steel, resulting in outstanding performance on the job. They feature a chrome-nickel finish to prevent corrosion. The 12 point design has the advantage of distributing better force around a larger area on the nut faces, more toward the center, not on the edges. The force is distributed on the socket ́s lobes, allowing you to fit hexagonal and square nuts or screws faster, all this thanks to its Super drive geometry featuring a 30° recovery angle. Opening size: 1”. length: 3-3/16″.