If it comes to the point that you must hire someone to repair anything for you do not let them use your tools. Any tool that you loan to them will "accidentally" end up in their tool box. I am really pissed right now because the bastard I had working for me took my whole socket set and now denies it. This is not the first time I have missed tools use by a carpenter or other repair person but I will now refuse to let them use any of my equipment.