Fabricated Hole Openers utilize leg and
cutter sections which are strategically mounted on an alloy
center body assembly. They are manufactured with single or
multiple stage cutting arrangements. Ample clearance is provided
around the cutters to allow efficient removal of the cuttings.
Replacement cutter sections can be welded into place to provide
re-use of the body assembly. Available in sizes from 8" to 72"
Demountable hole openers with regular bearing cutters mounted in
3 or 4 point arrangement are also available upon request.
When ordering specify soft, medium, or hard formation. Cutters
are available in milled tooth or tungsten carbide insert. When
ordering give pilot hole size and top threaded connection for
attachment to the drill string.