Review on Eagle Tool EC56236 Serrated Installer Tool by Onsommoshit Mathews

Seems like a lot of reviewers have issues with this, but I'll make a counter argument as it worked pretty well for me. Diagonal drilling of studs is always difficult, if only because of the dynamics of the drill, which wants to move with the rotation. The rod flexes on this rod and I think it's just the right balance of flexing for maneuverability and maintaining stiffness for bit pressure. Trying to run cables through a finished wall is just a headache, period. Such a flexible drill is an effective solution to a very unpleasant problem. One way to keep the drill bit from moving is to drill a hole in a piece of wood big enough for it to fit through. Then glue your piece with the hole to the first stud you want to drill. Let it dry completely and when you come back you'll have a nice pilot hole right where you need it. Then you can drill the first stud and this hole will help direct the drill bit to the rest of the studs. I'll admit I've punched through the drywall on the opposite side of a wall with this once, but that's a risk you take when trying to do something like this. There's a reason electricians get their job done before the drywall is up. I hope this helps someone in the future keep realistic expectations about what something like this can and can't do. It works if you have time to prepare and take it slowly, but it won't work wonders for you.