Milwaukee Electric Tool was founded in 1924 by A.F. Siebert. Milwaukee manufactures and markets heavy-duty portable electric and cordless power tools for DIY and tradesmen. With over 500 different tool models and 3,500 accessories. In 1995, Atlas Copco AB purchased Amstar, the parent company that owned Milwaukee Tool. It was then sold to Techtronic Industries co in 2005. TTI's global brands include Ryobi, Milwaukee, AEG, DreBo (carbide drill bits), Homelite, and Royal, Dirt Devil, regina and VAX floor care appliances.