FB charges an arm and a leg, I dunno if tim does drill or not. Just order the drill bit, put it into an adjustable drill and let the weight of the drill go through the glass. I also cut templates out of 5 gallon bucket lids to help guide at the start.
If you can afford the bits it aint hard, I've done it a few times and never had a problem. I just watched a couple YouTube videos for instruction first lol