The Wassara technology uses water to power the hammer. This makes it the ideal choice for most drilling applications in ground engineering – for drilling in sensitive areas as well as for drilling long straight holes. The water-powered DTH hammer is capable of penetrating any formation while maintaining speed and straightness. Hard rock, boulders, concrete, lime stone, granite, till, water rich formations and dense clay. The jet grouting hammer also enables jet grouting in one single pass.