The Draper 12 Piece 1/4" Drive Air Conditioning and ECU Socket Set is a specialist tool kit designed for servicing air conditioning systems and electronic control units on Audi, Volkswagen and Vauxhall/Opel vehicles. This comprehensive set provides automotive technicians and mechanics with the precise tools needed for removing plastic valve caps and valve cores during AC system repairs and maintenance. Constructed from durable chrome vanadium steel, the components feature a black phosphate finish for corrosion protection, ensuring longevity in professional workshop environments. The SW12mm and SW15mm sockets have a satin chrome finish. The kit includes specialist sockets in 2.2mm and 3.2mm sizes, specifically designed for delicate air conditioning components. The set also features seven 5-point tamperproof bits (TS10, TS15, TS25, TS27, TS30, TS40) with a 1/4" bit holder, ideal for accessing ECU units, airflow sensors, mass sensors and injection pumps on these vehicle brands. All tools are organised in a sturdy plastic storage case for convenient transport and protection between jobs. Features and Benefits: • Specialist design for air conditioning systems fitted to Audi, Volkswagen and Vauxhall/Opel vehicles • Tamperproof bits provide access to ECU, airflow, mass sensors and injection pumps • Chrome vanadium steel construction with corrosion-resistant coating for professional durability • Complete kit supplied in sturdy plastic storage case for organised tool management Contents: • 1 x SW12mm socket, 1/4" Sq. Dr., 40mm • 1 x SW15mm socket, 1/4" Sq. Dr., 40mm • 1 x Specialist socket, 1/4" Sq. Dr., 2.2mm • 1 x Specialist socket, 1/4" Sq. Dr., 3.2mm • 1 x 1/4" Bit holder • 7 x 5-point tamperproof bits - TS10, TS15, TS25, TS27, TS30, TS40