No, EV tool sets are not universally compatible with all electric vehicle models. Compatibility depends on several factors, including the make and model of the vehicle, the type of maintenance or repair required, and the specific design and technology used by the manufacturer. 
Different manufacturers may use proprietary systems, connectors, and components, which necessitate specialized tools. For instance, the diagnostic tools required for a Tesla may not be suitable for a Nissan Leaf or a Chevrolet Bolt. Additionally, the software used for diagnostics and updates can vary significantly between brands, requiring specific interfaces and protocols.
Moreover, the complexity of electric vehicles, which includes high-voltage systems, battery management systems, and electric drivetrains, often requires specialized training and equipment to ensure safety and effectiveness. Some tools are designed for specific tasks, such as battery diagnostics, high-voltage cable handling, or electric motor servicing, and may not be interchangeable between different vehicle models.
While there are some universal tools that can be used across various EVs, such as basic hand tools or certain types of multimeters, the more advanced and specialized tools are typically brand-specific. As the EV market continues to grow, there is a push towards standardization, but as of now, significant differences remain.
Therefore, it is crucial for technicians and service centers to have the correct tool sets for the specific electric vehicle models they are servicing to ensure proper maintenance and safety.