Our workshop is able to manufacture Hole Openers with cutters in
sizes from 6" (152 mm.) to 48" (1220 mm.) Our Hole Openers are
manufactured with sealed bearing milled tooth or tungsten carbide
insert cutters, according to the type of formation to drill.
Drilling mud circulation for removal of cuttings is assured through
the nozzles located under cutter shoulders. The number of cutters
assembled on the hole opener depends on the diameter and the
formation to be drilled. In order to make a perfectly vertical hole,
it is advisable to use stabilizers that may be positioned along the
string above or below the hole opener.
When ordering please specify:
- pilot hole size
- hole opener size
- type of formation
- top and bottom connection