Reverse Circulation (RC) drilling is a technique used in mineral exploration and mining to collect rock samples from below the ground surface. In RC drilling, a specialized drilling hammer known as a "Reverse Circulation hammer" is used. This technique is particularly effective for obtaining high-quality samples from deep and hard rock formations. A Reverse Circulation drilling tool is a pneumatic hammer designed to create a downward force by driving the drill bit into the rock formation. Unlike traditional drilling, where the cuttings are brought up to the surface through the drill string, in RC drilling, the hammer's design allows for the reverse circulation of cuttings.
