Low 36mm Socket Is hardened, tempered and produced from chrome vanadium steel. The low design enables use on cartridge filters. Features 6 Point Sockets Torque Hardened And Tempered Chrome Vanadium Steel Specification 3/8 Inch SQ 36mm Depth Applications 24v Petrol for Duratorq; for 2.0D, Transit 2.0 & 2.5 Mercehes CDi 16v (98on)