Corer is used for selecton of monoliths from loose watered soil with preservation of their natural constitution, consists of a body, two inserts with petals.
Corer is connected to the drill rod, then without rotating penetrate into the ground (well previously drilled). When ae corer is filled by core it rises and petals by gravity of soil corer closed and retrieved to the surface.
Connecting thread - lock Z-50
Buy with this
