With greater depth(), this Puller is ideal for O, S and #1 Scale models. It can remove gears from a shaft with a distance of 1-5/8′ from the face of the gear to the shaft end. Wheels up to 1-1/4′ (scale 55′ in O 33′ in #1) can be pressed from their axles. Great for repairs or rebuilding in smaller scales and repowering slot or RC cars, too.