BEST FOR HEAVY-DUTY CLEANING: Remove most stubborn stains and dirt from surfaces like brick, grout, cast iron, concrete and more | | WHOLE-HOME CLEANING: Clean inside and outside the home, wherever the mess takes you | | 2 3.5 HARD BRISTLE BRUSH: Clean the dirty surface area without having to go over the same spot multiple times | | FITS MOST DRILLS: The 1/4" hex shank is compatible with most drills | |