Discuss 107 or 117 core drill size in the UK Electrical Forum area at ElectriciansForums.net
you`v to watch it though with 117 cores....you need to leave enough meat in the brick so you can plug n screw the vent to the outside wall....if the hole`s to big...you risk breaking into it when drilling 5.5 for red plugs...
Reply to 107 or 117 core drill size in the UK Electrical Forum area at ElectriciansForums.net
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