Number of holes:6 posteriori/ 6 rear jets, 4 centrali/ 4 central jets. Drilling angle: rear 35°, differert central rotating jets according to each model. Max pressure: 250 bar Applications:leaning of pipes completely obstructed by sand ,compact soil, limestone (Drilling head) or mineral deposit , cement (Widia head). Suitable for removing roots growth.(Knives head)
