With Spiral Force Technology, the Clean Bottle Express Carboy Brush will clean your carboy bottles or Cornelius (Corny) Kegs in a fraction of the time it takes than with the standard carboy bristle brush. Our patented design cleans the inside of the carboy neck, sides, and bottom base extremely fast and effortlessly. The brush attaches to any standard cordless drill. It even cleans Cornelius Kegs without the need for you to reach down into the bottom to clean out the residue at the base of the keg. The brush is designed using a high synthetic plastic rod which keeps your bottle scratch free during the cleaning process. It is a must-have for all hobby brewers and winemakers!