AQ impregnated diamond core bit is the smalles wireline double tube core barrel use diamond bit. It adopts diamond grain and steel to produce. When drilling the diamond grain will keep to exposed. Impregnated core bit is suit for kinds of formation especially for hard formation drilling in geological drilling and water well drilling.
Parameters of impregnated core bit
Bit size
Core bit
Reaming shell
Bit size
Outside diameter(mm)
Insider diameter (mm)
Outside diameter (mm)
For AQ
47.75
27.1
48
For ATW
47.75
30.22…