Expert by Facom E117099 21mm x 1/2" Hex Socket

21mm hex socket which is made from chrome vanadium steel with a chrome finish.Has a 1/2" square drive to be used with a ratchet.The Maxi Drive Profile means that the torque is applied to the sides rather than to the angles of the nut or fastener.Adheres to standards - ISO 2725-1DIN 3124ISO 1174-1ISO 1711-1ISO 691Not suitable for machine operation or with power tools.