Black & Decker Corporation is an American manufacturer of power tools and accessories, hardware and home improvement products, and technology based fastening systems
DeWalt is a worldwide brand of power tools and hand tools for the construction, manufacturing and woodworking industries. It is a subsidiary of Stanley Black & Decker
SKIL Power Tools is a wholly owned subsidiary of the Robert Bosch GmbH and is a leader in portable electric power tools and accessories serving the do-it-yourself consumer and professional construction markets