Small ceramic tile, wet, being rubbed with a) rubber glove and b) finger (markers in file). Basic noise treatment added, but otherwise it is 'as recorded'.
I used …
Portable oil heater being dragged on its plastic wheels across a (slightly gritty) tiled floor. Close mic with Tascam DR100. Cleaned up a bit (light compression).
Lump hammer (wooden handle) being handled in various ways. Close mic with Tascam DR100. Cleaned up a bit (light compression).
Two metal spanners / wrenches being handled in various ways. Close mic with Tascam DR100. Cleaned up a bit (light compression).