PEERCHEER offers LTK48 LTK60 surface set reaming shell use for use with LTK48 LTK60 core barrels. LTK48 LTK60 surface set reaming shell have pads of tungsten carbide ,TSD pins or diamond stones.Each pad is protected with tungsten carbide strips or TSD pins on both the leading and trailing edges to help protect gauge and improve life. LTK series surface set reaming shell is available for application in standard DCDMA A B size.