Grinders are handheld power tools that can be used for a variety of purposes, depending on the type of grinder and the attachments used. Here are some common uses for grinders:

• Angle grinders: These are primarily used for cutting, grinding, deburring, finishing, and polishing metal. They can also be used to cut ceramic tiles, concrete, and stone. Additionally, they can be used to sharpen lawn mower blades, axes, and hatchets.

• Marijuana grinders: These are used to grind up weed into a powder-like substance, making it easier to roll into joints.

When using a grinder, it is important to use appropriate personal protection equipment (PPE) to protect your hands, ears, and eyes, while covering your mouth and nose. Additionally, it is important to use the appropriate disc, cutter, or other attachment for the job at hand.