PEERCHEER offers BTW NTW HTW stop ring for use with BTW NTW HTW core barrels. The BTW NTW HTW 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. TW series stop rings are available for application in standard DCDMA B N H 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.