Function: It is a hand tool used for cutting ceramic, porcelain, and sometimes stone tiles to specific sizes and shapes.
Mechanism: It operates by scoring the tile's surface with a small, sharp wheel and then applying pressure to snap the tile along the scored line.
Features: The tool shown has a base for stability, two parallel rails for guiding the cutting mechanism, and an adjustable angle guide for miter cuts. The brand name "RAIDER" is visible on the side.