Good Concept,, But where does the excavated materials go? the soil recovered might pile up at your drilling machine,,,, the spiral blades will push back the drilled soil and might pile up in your Drilling Machine,,, The spiral blades might also damage the surface of the internal pipe,
Good Concept,, But where does the excavated materials go? the soil recovered might pile up at your drilling machine,,,, the spiral blades will push back the drilled soil and might pile up in your Drilling Machine,,, The spiral blades might also damage the surface of the internal pipe,
alvingulle 2 weeks ago
good clip thanks
Malkowda 2 months ago