Heavy duty reaming shells are manufactured to withstand difficult drilling conditions and provide long life. Surface set reaming shells in all common DCDMA sizes are a stock item. Rreaming shells, impregnated reaming shells and full hole profile are also available. Reaming shells are available in industry standard lengths of 15 cm (6"), 25 cm (10") and 46 cm (18 3/8"). A combination of polycrystalline diamonds (PCD) and natural diamonds are utilized for all heavy duty reaming shells.
Reaming shells that are longer than a single diamond ring reaming shell are used when there is a requirement for additional core barrel stabilization to reduce bore hole deviation.
Full hole vs standard.