I'm almost ready to pull the trigger on getting the k drill. But I have a few questions. First, what is the best drill to pair up with the k drill? I've seen mostly Milwaukee 18 volt brushless, but is there anything better? Does it need to be brushless? Second, how many inches of ice should I expect to drill on 1 battery? If there's anything else from someone who owns one that I should know I would appreciate it.