I ordered this with a new latch that I had to install because my son had autism and ran away. I suppose it would have been a great system if the drill/saw blade hadn't been deformed. When I installed it on my drill bit it was about 1/4" off center. Instead of the saw spinning smoothly, it moved erratically and couldn't cut through the door. I won't waste time returning it and somewhere in the Driving close to get the parts you need, I strongly recommend not ordering something like this, if there is a problem it's much easier to return it locally.