I was given an older model 10" Craftsman Radial Arm Saw. Supposedly works great. Problem is there is no key for it. It isn't like current models where the key is in the switch. The key is seperate from the switch, off to the side. There is no model# on the saw or base anywhere. Does anybody have any suggestions as to where I could find a key? Can this key be bypassed? I called Sears and they couldn't help unless I have an Model #. Any input would be great!