Casing - cased
cased
Range of application - Hard rock up to 100 MPa, unreinforced concrete
Hard rock up to 100 MPa, unreinforced concrete
Equipment - Kelly box 200 mm, easily exchangeable cutting ring with round shank chisels, hardfacing as wear protection
Kelly box 200 mm, easily exchangeable cutting ring with round shank chisels, hardfacing as wear protection