Cordless grinders are portable power tools designed for cutting, grinding, and polishing various materials. They operate on rechargeable batteries, allowing users to work without being tethered to a power outlet. This feature makes them ideal for both professional and DIY projects, especially in locations where access to electricity is limited. These tools come in various sizes and power levels, catering to different tasks. Common applications include metal fabrication, masonry work, and woodworking. Many cordless grinders are compatible with a range of attachments, such as cutting discs and flap wheels, enhancing their versatility for various jobs.