The Sealey SX032 is a comprehensive 7-piece oxygen sensor wrench set designed for removing and installing oxygen sensors, vacuum sensors, oil sender units and injectors on modern vehicles. This professional socket set is specifically engineered to work with both Titania and Zirconia oxygen sensors commonly fitted to contemporary petrol and diesel engines. Each socket features strategically positioned windows and slots that allow them to be fitted over sensor wiring harnesses without disconnection, preventing damage to delicate wiring and eliminating the need to disturb electrical connections during sensor removal. The set includes both 3/8" and 1/2" square drive options, providing compatibility with standard ratchets and torque wrenches. The kit covers the most frequently encountered sensor sizes and configurations found in automotive service work, including offset designs for restricted access areas and heated oxygen sensors. Ideal for professional mechanics, MOT testers and automotiv