I am planning on Installing a Vent hood the manufacturer recommends 8 inch duct work.
I am looking for options to make this hole.
1) Diamond hole saw.
I couldn't find a diamond hole saw in 8 inch.
2) Core Drill
But I will get a clean hole. My question is how do I measure the thickness of exterior wall. I have brick which is about three inches. I measure the wall thickness near my garage with brick it comes to around 10 inches. Is this correct ?