I use a 6 3/8 hole saw with my 18 volt milwaukie cordless.To keep the dust down,I use a cardboard box cut down to like 3",putting a hole in the center of the box with the drill on the botton.Fast and easy.I use a carbide hole saw when instaliing in L&P. The 6 3/8 I use for Halo
and a 6 7/8 for Marco.And for sure use the remodel housing. One other old way I have used to keep the dust down is use a half of a basketball instead of the box.
Enjoy
