>>>> This thing is called a chain whip. No, it’s not what you think. It’s a wrench, but with no way to close the chain into a ring. So how can you use it to gri

>>>> This thing is called a chain whip. No, it’s not what you think. It’s a wrench, but with no way to close the chain into a ring. So how can you use it to grip anything? It's for grabbing a sprocket on a bike wheel.