Every man (and any hardcore woman) should own an angle-grinder... they should be issued when you get your drivers license. There is no end to the uses you’ll find for this kind of tool.My go-to grinder is a Hitachi that is bullet proof. It refuses to die, even though I treat it poorly and demand unreasonable things of the tool. But this is a new grinder for me... I bought it to remove grout to prepare for re-doing the mortar on the brick steps of my home. I wasn’t thrilled about using the Hitachi because it would eat the bricks alive with any slip of my inebriated hands (I always do this kind of work after a few beers... okay, I never even wake up without a few beers).Anyway, the ability to dial down the speed makes this a more articulate grinder... perfect for grout. And it doesn’t spray dust all over the place. If they had adjustable-speed angle grinders when I bought my Hitachi, I might have gone this way instead and have only one tool. But it’s nice having a heavy-duty brute as well as an artisan tool. The variable speeds make this grinder much more useful for a variety of tasks. It’s a great addition to any tool set.