These punches wont work with the safety glass used here in Australia.
Also our regulations state the thickness of glass to the size of the windows and also in multistory windows.
Some companies and homes use a film over the glass to stop theives breaking and entering. So even if you do break the glass it still sticks together.
At the front of one of our local office's I have seen scratches and marks from the local hoons trying to throw things through it while drunk. I haven't seen it broken until a car went through the front.
After seeing the broken glass and watching it being replaced, I wouldnt try breaking it with anything less than the car.