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. 

We can produce reaming shells with 6", 10" and 18" length. 

Reaming shells (with double pads or three pads) are suitable to use in all formation conditions ranging from broken and abrasive to consolidated and non-abrasive. As this kind of reaming shell is physically longer than the standard type, it is necessary to use an appropriate inner tube extension in order to compensate for the difference in overall reaming shell length. 

Combined high quality and design make our reaming shells the best in the industry. With several different types, we've got you covered no matter what your requirements are. 

Size Available: 
"Q" Series: AQ, BQ, NQ, HQ, PQ (Front end & Back end Type) 
T Series: T36, T46, T56, T66, T76, T86 
WF Series: HWF, PWF, SWF, UWF, ZWF 
WT 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, NWM 
T2/T6 Series: T256, T266, T276, T286, T2101/T676, T686, T6101, T6116, T6131, T6146, T6H 
Others: NMLC, HMLC, LTK48, LTK60, TBW, TNW, ATW, BTW, NTW, AQTK 
NXD3, NXC, T6H, SK6L146, TT46, TB56, TS116, CHD101

Please feel free to contact with Ms.Carey Gao for more detailed specifications or catalog.