The BlueSpot 2 PCE Locking Wheel Nut Remover Set is manufactured from heavy gauge impact grade steel. The locking wheel nut has a deep internal reverse thread, which grips the outside of a wheel nut and allows its removal. The nut remover set is ideal for those who have lost their security sockets as the two sizes cover those most frequently used in the automotive industry, 19 to 26mm. The remover set has a 1/2" square drive so can use used in conjunction with most hand and air tools.