Hi,
Intumescent strips again :(
If I were to route a slot for an intumescent strip (adhesive on back and with smoke brush) what size router bit should I use? The strip is 10mm wide. I notice that screwfix sell 10mm and 9.5mm and 9mm. I guess that I am looking for a snug fit and so would 9.5 (or even 9) be more suitable? Any experiences/advice?
TIA Colin