The sound of drilling (4 approach). Also short sound of start button (after the second approach). At the 3 and 4 approach you can hear hi-frequency whistle, it's a sign what the bit dull.
Drill press drilling through metal. Recorded in 24-bit 96khz with a tascam dr-40 and a sony ecm-nv1. For details on sow: blacksmith ed1 sound pack see: www. Oree. Storijapan. Net/praxis/sound-of-work.