Properly Staking a BCG Gas Key / Brownells Carrier Key Tool

Have you ever gotten bolt carrier group that had questionable staking on the gas key or even assemble bolt carrier groups yourself? I had just the issue not too long ago and found the perfect tool for the job. I picked up a few bolt carrier groups that were on sale during the July 4th holiday and when they came in, both keys were improperly staked. Instead of sending them back and probably getting two more BCG's with poor staking, I decided to do it myself. Luckily I found this Brownells carrier staking tool that made the staking so much easier.