during drilling rig URB 2A2 auger and similar with access to the rotator Z-50
transition to 135mm augers, 180mm, and the like with hexagonal connection S-55
by muff adapter.
Material coupling adapter S-55 - Steel 20
Material coupling adapter Z-50 - Steel 35
1 sleeve - 55 mm hexagon
2 clutch - cone (stab) thread Z-50
The size of the slot key - 50 mm