Angle grinders, also known as disc grinders or side grinders, are versatile power tools used for cutting, grinding, and polishing various materials. They are called angle grinders because the grinding or cutting disc is mounted at a right angle to the tool's body. Here are some key features and uses of angle grinders:

1. Motor and Speed Control: Angle grinders are equipped with a high-speed motor that drives the rotation of the grinding or cutting disc. The motor power and speed can vary depending on the specific model. Some grinders offer variable speed control, allowing you to adjust the speed based on the task and material being worked on.

2. Discs and Wheels: Angle grinders use a wide range of abrasive discs or wheels, including grinding discs, cutting discs, wire brushes, and polishing pads. These accessories can be easily attached to the grinder's spindle or arbor, allowing for different applications. Grinding discs are used for smoothing and shaping surfaces, cutting discs are used for cutting through metal or other materials, wire brushes are used for removing rust or paint, and polishing pads are used for achieving a smooth and polished finish.

3. Safety Features: Angle grinders typically have safety features to protect the user. This includes a safety guard or shield that covers a portion of the rotating disc, preventing debris from being thrown towards the operator. Some models also have a lock-off switch or paddle switch that prevents accidental start-up. It is important to follow safety guidelines, wear appropriate protective gear, and use the appropriate safety guards for the specific task.

4. Handle Design: Angle grinders have a handle or grip that provides control and stability during operation. The handle is typically adjustable, allowing you to position it for optimal comfort and control while working. Some models offer auxiliary handles that can be attached for better balance and support, especially for larger or more demanding tasks.

5. Versatility: Angle grinders are highly versatile tools suitable for a wide range of applications. They are commonly used in metalworking, construction, masonry, and other industries. They can be used for tasks such as cutting metal pipes or rebar, grinding welds, removing mortar or grout, shaping or smoothing various materials, and even sharpening tools with the appropriate attachments.

6. Size and Power: Angle grinders come in various sizes, ranging from small handheld models to larger and more powerful industrial-grade versions. The size and power of the grinder will depend on the specific application and workload requirements. Smaller models are typically more portable and suitable for light-duty tasks, while larger models offer more power and stability for heavy-duty applications.

It is important to use angle grinders safely and responsibly, following the manufacturer's instructions and wearing appropriate safety gear such as safety glasses, gloves, and hearing protection. Proper handling, control, and use of the correct accessories are essential for achieving accurate and safe results with angle grinders.