Holikme 4Pack Drill Brush Power Scrubber

First of all, this purchase is worth making just to get the pop lock extender for your electric drill. It comes with an 8-in extension with an easy drop in head for swapping bits, and the quality is quite nice on it. I have been using the brushes in order to get the grout clean on my shower stall which is a tile and grout setup. The Big brush is the perfect size for a single tile, so I sent her it on the grout and then roll it across the entire length of the wall getting half of the tile on each side and putting the most emphasis on the grout in the middle. Stains that I could not get out with my scrub brush came out very easily with the big head attachment and that is what I use week to week to keep my shower clean. There are smaller brushes as well, and I find those are most useful in the corners and in the edges where are the shower tiles meet the shower floor. A little bit of cleanser and water and then a hit with the smaller pointed brush has the grout looking beautiful white in just a minute's work. Useful in the kitchen for that similar edge between the countertop and the backsplash. Plenty of good quality here and I have not been gentle on any of this. But as I said earlier that extender with the pop lock proved invaluable when I had to keep switching between a drill head and a driver bit on a home improvement project. Nice little piece added to the mix.