This version uses four ceramic bullets, which shatter upon impacting the rock, and which in turn are intended to fracture the rock to allow the drill bit to proceed. The tround is designed such that each projectile impacts the target at a slightly different time, imparting multiple shocks to create constructive interference of the shock waves in the target material.
This version employs four ceramic projectiles, which shatter upon impact with the rock, and are intended to fracture the rock to facilitate the drill bit's progress. The design of the tround ensures that each projectile strikes the target at a slightly different time, generating multiple shocks to create constructive interference of shock waves within the target material.