Drill rig sale

URB 2,5А

 
 

Tricone drill bit for very hard rocks full hole drilling

Fig. 1. Tricone drill bit for very hard rocks full hole drilling: 1 - external taper thread (pin); 2 - bit element (arm); 3 - arm and journal channels for support blowing down; 4 - arm journal; 5 - hard alloy tips with hemispherical business end; 6 - ball plug; 7 - cutters; 8 - rolling bearing; 9 - central channel for bottomhole scavenging and cutters blowing.