SC50NKS-QL DTH hammer is SOLLROC K series hammer ( high penetration series) specialized in mine blast hole drilling.
It is a interim model between 5 inch and 6 inch hammer. It can work with smaller size bit like 5 3/4" (146mm) which regular 6 inch hammer can not work with.
It is proven by testing and using in many job sites for varies rock conditions. It is used for varies applications, including mining, exploration, water well, geothermal, construction drilling and civil engineering.