[Time-saving-effective cleaning method]: This cleaning electric drill brush is suitable for most types of electric drills. Connect the brush to the cordless electric drill and it instantly becomes a powerful cleaning tool. Different sizes can be applied to various scenes, complete heavy cleaning tasks more efficiently, save time, and maximize the role of electric drills. He is your good partner for household cleaning.[4 electric drill brush set]: The electric drill accessory set includes 4 nylon brushes of different sizes, 2"" / 3.5"" / 4"" / 5"". Different sizes are suitable for different places, such as: bathroom, pool tile, floor, brick, ceramic, marble, grouting, oily garage floor, exterior wall, fence, railing, etc. You can choose a brush according to your needs to meet different cleaning needs. * Excluding drill bit *[Three hardness bristles to meet a variety of cleaning needs]: The electric drill brush is equipped with three hardness bristles: white (soft) blue, yellow, red and green (medium hard) and black (hard bristles). You can choose the right bristles according to your household cleaning needs (medium hardness bristles meet most household cleaning needs).[High quality material]: The brush head bristles are made of nylon material, which has good wear resistance and heat resistance. It has good cleaning performance and is suitable for all drill bits. It will not scratch the items to be cleaned and is easy to clean. This is ideal for saving cleaning time.[Wide application]: The cleaning drill brush is widely used for indoor and outdoor cleaning, such as: bathroom, interior decoration, barbecue grill, swimming pool tile, floor, brick, ceramic, marble, grouting, oil stain, garage floor, outdoor house wall, fence , Railings, etc.