6" size of the gear puller refers to the maximum spread capacity of the legs. It is suitable for extracting gears of various sizes up to 6 inches in diameter., Legs of the gear puller are adjustable, allowing you to adapt the tool to different gear sizes. You can extend or retract the legs to achieve the desired grip and fit for the specific gear., Gear puller enables precise and controlled extraction of gears. With its three-leg design and adjustable legs, you can apply even pressure to the gear, minimizing the risk of damage.