Comes with 2 keys.  This lock is for the main door which depending on which way you are looking at it is the side loading door.

If you need to drill out this lock to open the machine follow these instructions:  Use a 1/8" drill bit and drill in the center of the lock.  Drill in as far as you can.  Go up a drill bit size and repeat.  When you get just over a 1/4" drill bit you should hear all the pins fall out of the lock.  Once the happens you can push on the top part of the lock handle and the door should open.