product description
tricone cutters / single cone bit for HDD hole opener
Foundation roller cones
size: 8 1/2inch
iadc637/737
Drilling formation:hard rock
Bearing: rubber sealed bearing & metal sealed bearing
Application: for hdd rock reamer & core barrel (foundation)
Roller Rones Rock Reamer
(1) Available in sizes from 220mm to1600mm. Any sizes available upon request.
(2) 4Hdd can provide 220-1600mm HDD rock reamer with roller cones.
(3) The roller con reamer fit for all sorts of rock formation.
(4) The cone bearing is desined with metal seal and with IADC217-737 tooth type.