I used to remove the ring because the socket attaching / detaching is hard from the time of purchasing a new article of Ingasoll's impact. I was looking for something inconvenient for the socket to fall. Fit perfectly when you bought this product and trying O-ring. It is very satisfying because it seems that desorption of the socket can be done smoothly.
I bought it because the old NPK Impact Wrench socket will fall out. Because it looked thinner than what was attached from the original appearance, though I thought that it failed, I could exchange it without problems. I am satisfied as I got to secure the socket firmly.