An angle grinder is a compact handheld power tool built for grinding, cutting, sanding, and surface finishing across metal, stone, and tile. Driven by a high-rpm motor inside a slim, ergonomic housing, it transfers rotational force through a right-angle die-cast metal gear head. Key physical elements include a side slide switch for sustained power, top spindle lock for swift disc changes, and heat-dissipating cooling vents near the gear assembly. Fitted with a protective metal wheel guard to deflect flying sparks and debris, it is an indispensable tool in metal fabrication, construction site work, welding prep, and industrial maintenance.