Review on Bi Metal 23 Piece Mandrels Galvanized Plasterboard by Alexander Scharon

It's been a long time since I've needed a hole saw. (Usually for drilling a hole in a door for a lock). However, I recently had to install a French sewer with a sump pump to deal with a flood caused by my neighbor's sweetheart. At the moment this pump is powered by a 100ft external power cord as there is no outlet near the pump, but there will be one soon! This kit allows me to drill through my bedroom wall (next to an existing outlet) and create a nice little hole on the outside. I can then connect to the bedroom drain and create a new external drain next to the French drain drain pump. Saw blades will cut wood, ceiling, and drywall, but probably not metal or brick. That should be all I need to get the job done.