If you plan on running drain pipe through studs, you are going to have to make some holes. Augers and spade bits only go up to inch and a half- thats the size of the pipe, so they're out. You need to make holes at least 2 inches, so that leaves you with self feeds or holesaws. Holesaws are cheaper, but they are also slower. You have to stop after each hole and wrestle the spent plug of wood out of the holesaw body. Very time consuming. If you hit a nail with the holesaw, it's game over. Self feeds can be r..
An HVAC friend of mine recommended Milwaukee's series of big selfeed bits for the do-it-myself job of retrofitting a radiant, underfloor heating system in our 112-year-old one-room schoolhouse. I like to learn how the pros do things, and as every professional electrician and plumber must know already, these bits work great, but with at least one limitation. Running the tubing for our underfloor radiant heat requires drilling many holes through old 2 1/2" joists and the blocking between them. I began t..
we have been using this brand of bits for the past 8 years. the bits that i have purchased in the past 7 months have not met our expectations. they wear out after drilling ten holes. In the past they have lasted atleast 3 hundred holes. the set screws are wearing out a lot faster as well. They have lost their durability. I would like to continue using these bits, but we need the quality that milwaukee used to have.