Installing a Vent in a Hollow Door 

No problem. Thank you for your comment and I hope you managed to do it yourself.

Thank you.

Thanks. The Vent was from Bunnings (hardware store in Australia) and the tool is a Dremel Trio. I am not sure if you can get a dremel trio anymore. I could have used a reciprocating saw instead, but I bought the dremel tool years ago and haven't really used it so I thought I'd give a go!