●Sockets for working on the nozzle holder ●Socket 1/2" drive , 4-tooth, length 72 mm, fits Mercedes series: OM 401/421, 403/423, LA, A, 470 ●Socket with 32 mm outer hexagon, length 70 mm,4-tooth with internal thread M14 1.5 mm,fits Mercedes, Neopplan, Setra ●Socket 1/2" drive, 3-tooth, length 120 mm, fits Mercedes, MAN ●Socket with 32 mm outer hexagon, length 120 mm,4-tooth, fits MAN, Mercedes