In general, pneumatic hammers and auger bits are separately used.
According to their special features as boring equipment, pneumatic hammers are usually used for rock beds, hard rocks, soft rocks, and weathered rock, and auger bits for gravel bars and weathered rocks with low strength.
Chang Shin??s auger hammer is special in that it combines the strong points of these two tools in an effective way in order to bore holes in soft rock strata including weathered rock and sedimentary rock as well as hard rock strata, improve the digging speed remarkably, and discharge sludge smoothly. It is especially designed to be suitable for rock beds with many cracks and high strength as well as soft and hard rocks.
This patented product is registered at the Korean Patent Office.