Im getting a wooden vivaruim but how do i get this... https://www.amazon.co.uk/d/Reptiles-Amphibians/Reptile-Vivarium-Ceramic-Heater-Holder/B0025Y8TA2 through the top of the wooden vivrauum i know i need to drill a hole but how do i get the holder bit through the hole and there seems to be no way to detach it from the wire?