6 point chrome vanadium socket, with rubber insert Satin finish Drive Description Width (mm) Thread size Length (mm) Weight (g) 3/8\” 6 point 21mm spark plug socket 28.0 14 70 160 Note: If you want a socket to use with our drain plug key, then rather choose the 3/8\” drive 21mm 6 point deep socket (SKU M380621-C). Download Data Sheet
