He remembered her synthesized voice like metal scraping on glass.

As she eats each bite given to her, he hears the sounds of metal scraping.

The metal of the silencer scraped against his teeth and he eventually opened up.

It came slowly, screaming in protest as the metal scraped and dragged against the stone.

Sparks shot out as the metal scraped along the asphalt and the van ground to a halt.

He drew his blade once more and it clashed against her swing, the metal scraping together.

There was a clicking sound followed by metal scraping on metal.

For example, synthesizers might play a droning melody over the sound of metal scraping together.

She winced as the old metal scraped and groaned.

He was skidding on the cobblestones and sparks were flying as his metal scraped along the stone.