... carried along,. It is stuited to work on high mountains, plains, hot and cold area ... machine is suited to build of bridge, road, power station, geological explortation etc.Technical parameters ... / pionjar rock drill/ hand held gas jack hammer/YN27J GAS POWERED BREAKERSRock Drill TypeYN27JWeight (kg)27Overall dimension ... consumption (L/m)≤0.12Tank capacity (litre)1.65Max.drilling depth (m)6Shank size (mm) ...