Which deep-tillage implement is specifically engineered to shatter and break impenetrable subsoil hardpans beneath the plough layer (30-45 cm deep) without bringing infertile subsoil to the top?

A Subsoiler features a long heavy vertical shank with a narrow chisel point that fractures compacted tractor-induced hardpans up to 45–60 cm deep, improving internal drainage and deep root penetration.