A complex interaction of materials creates this intriguing sound effect, full of scraping, rubbing, and clicking. The deep resonance suggests something substantial being moved or manipulated, perhaps an old machine grinding into gear, or heavy wood shifting under duress. Source Friction Mechanism Metal Clicking Wood Movement Rotation Drag Deep 11 is excellent for adding texture and realism to mechanical animations, creaking doors, or any scene requiring a sense of age and weight, like old furniture or a rusty crank.