Hitachi C9BU2 is a circular saw with a 2000W motor and a 190mm blade. It can be used for a variety of cutting applications, including ripping, crosscutting, and mitering. The saw features a number of safety features, including a blade guard, a riving knife, and a lock-off switch. The Hitachi C9BU2 is a powerful and versatile circular saw that is ideal for a variety of cutting applications. It is easy to use and features a number of safety features that make it a safe choice for both professionals and DIYers.