A Piezoelectric-Driven Rock-Drilling Device for Extraterrestrial Subsurface Exploration

Table 4

Parameters of the ultrasonic drill prototype.

Parameter	Size; diameter × length	Weight	Working frequency	Input power	impact block’s mass	Drill stem’s; diameter
Value	34 mm × 213 mm	402 g	16148 Hz	15 W	4~6 g	6 mm