it is set with natural or synthetic diamond,and it is used to couple the drill bit with the core barrel, N,H,P reaming shell.

Reaming shell is set with natural or synthetic diamond, and it is used to couple the drill bit with the core barrel. Its main function is to ream the hole to the correct constant specific diameter which ensures adequate clearance for the core barrel and sufficient clearance for the new bit which replaces an old one. It also acts as a stabilizer for drill bit.

Size Available:

Wireline Series:      A,B,N,H,P    (Front end  & Back end Type) T Series:        T36,T46,T56,T66,T76,T86WF Series:       HWF,PWF,SWF,UWF,ZWFWT Series:       RWT,EWT,AWT,BWT,NWT,HWT  (Single Tube/Double Tube)WG Series:      EWG,AWG,BWG,NWG,HWG   (Single Tube/Double Tube)WM Series:      EWM,AWM,BWM,NWMT2/T6 Series:   T256,T266,T276,T286,T2101/T676,T686,T6101,T6116,                T6131,T6146,T6HOthers:       NMLC,HMLC,LTK48,LTK60,TBW,TNW,ATW,BTW,NTW,AQTK              NXD3,NXC,T6H,SK6L146,TT46,TB56,TS116,CHD101

All Chinese Sizes

reaming shell