When building a new house I had to run some plumbing. I needed several different sizes due to where I needed to place the line and the sizes I was going to use. After using these Dewalt hole saws many years ago when building a log home, I bought several new sizes and found that they were winners again and worked great. I like the double acting cutting edges just in case I poke a nail through the frame while cutting a hole. To be clear this is just part of a hole saw, you will need a suitableโฆ