The Makita 9565CRX1 is an angle grinder primarily aimed at professional users, such as builders, engineers, electricians, automotive mechanics, and other technicians. This tool is used for cutting, grinding, and removing materials such as metal, plastic, and stone and is designed to withstand heavy use in the field.

• Anti-restart protection system
• New Super Joint System (SJS) transmission system
• Overload protection
• Labyrinth construction seals and protects the drive gear and bearings from dust for longer tool life.
• Power: 1400W
• Cable Length: 2.5 m
• Maximum motor speed: 11000 rpm 
• Weight: 2600 g

The Super Joint System (SJS) is a transmission system primarily used in power tools, such as drills and angle grinders. The SJS allows the tool's shaft to move freely in case the disc or blade gets trapped or stuck, thereby reducing the risk of injury and the likelihood of damage to the tool.

Electric angle grinders are useful for many cutting, grinding, and material removal tasks. They are much more efficient than battery tools and can cut or remove material much faster and easier.

They also offer greater cutting and grinding precision. They usually come with multiple accessories and cutting discs and can be adapted to different materials and tasks.

Finally, they are extremely durable and withstand heavy use and demanding working conditions. By choosing an electric angle grinder, you can perform your tasks with efficiency, precision, and reliability.