Final answer:
Snap ring pliers are the tool used to remove snap rings. They have specially shaped jaws that can securely grip and compress or spread the snap ring.
Step-by-step explanation:
The tool used to remove snap rings is snap ring pliers. Snap ring pliers are designed with specially shaped jaws that can securely grip and compress or spread the snap ring, allowing for easy removal or installation. They come in various sizes and types to accommodate different snap ring sizes and configurations. For example, internal snap ring pliers are used to remove snap rings that are inside a bore or cylinder, while external snap ring pliers are used to remove snap rings from a groove on the outside of a shaft or spindle.