Diamond PQ bit 4 7/8 drilling accessories has hardness seriese from S1 to S12. Different series for different formation in drilling. PQ bit 4 7/8 drilling accessories are mainly design for hard formation drilling in geological drilling and sample coring. Except for PQ Impregnated Core Bit, we also supply wireline double tube impregnated Core Bit size for AQ, BQ, NQ, NQ2, HQ, PQ, SQ, T2-46, T2-56, T2-66, T2/T6 -76, T2/T6-86, T2/T6-101, T6-116, T6-131, T6-146, TT36, TT46, TT56, triple tube core bit size for NQ3, NMLC, HQ3, HMLC, PQ3 and single tube core bit with B46, B56, B76,B86, B101, B116, B131, B146, AWG, BWG, NWG, BWM,NWM etc, and also supply PDC Core Bit with matrix body or steel body, Carbide Core Bit, TSP Core Bit, Surface Set Core Bit and Elctroplated Diamond Core Bit.


Except for diamond PQ bit 4 7/8, we also supply drilling accessories for 4 7/8 inch PQ size, such as core lifter, core lifter case, inner tube, stop ring, locking coupling, adapter coupling, landing ring, outer tube, stabilizer, core barrel, etc, welcome to contact us if you are interested in any of them.
