Three piece universal set. Essential for servicing today’s computer-controlled vehicle systems. Easily removes exhaust gas oxygen sensors (known as ‘EGO’, ‘O2’ or ‘Lambda’ sensors), vacuum switches and Vauxhall pressure switches. Also suitable for diesel injectors found on Mitsubishi, Nissan, Opel and VW vehicles. Made from heat treated cast steel. | | Set contains: | 22mm (7/8″) hex, 1/2″ square drive socket with 7.5mm side slot for sensor wire clearance. Socket has 22mm hex for use with a spanner. Overall length: 80mm. | 22mm (7/8″) hex, crow’s foot style wrench, 1/2″ square drive (double square for easy access). With full length 11mm slot for total clearance of switch/sensor wire | 22mm (7/8″) hex, crow’s foot style wrench, 3/8″ square drive. With full length 8.6mm slot for total clearance of switch/sensor wire.