High rpm drilling test - MDU core drill with SM-spindle unit

Drilling with 6.6 meters / second. Ø 200 mm drill bit, 47 cm thick concrete with porphyre stones and one 30 mm re-bar. The drilling took 5 minutes. Ok performance and not much vibration. More feeding pressure needed than with 11 meters/second to reach full power. Re-bar between 0:15-2:45 = approx. 2 min 30 seconds.
The whole drilling is not on video.