PEERCHEER offers NQ3 HQ3 PQ3 NWL-3 HWL-3 PWL-3 stop ring for use with NQ3 HQ3 PQ3 core barrels. The NQ3 HQ3 PQ3 stop ring is a hardened steel snap ring designed to seat into a mating groove, and retain the core lifter in the core lifter case. Q series stop rings are available for application in standard DCDMA N H P size.
PEERCHEER’S core lifters are are made of high-quality alloy steel that is specially heat treated to increase strength, toughness, and wear life.