Casing Shoe

Whatever form of casing is, casing shoe must be fitted on top of casing when put into drill hole. The edges of casing shoe exposed to rocks are very few. Casing shoes are connected with casing by means of thread. Outer diameter of casing shoe is same as bit’s,with its inner diameter equal to or slightly less than casing’s. Such design make it is possible for core tube, drill rod and core barrel to pass through in order to extend geological exploration

Main functions of casing shoe:

1): protect casing ends from distortion.

2): help casing pass through stratum to bed rock.

3): carry mud to earth surface.

4): help down-pass of casing when drill rod is in hole.

Long year history and famous manufacturer of diamond core drill bits many size, such as PDC drill bit, impregnated and surface-set diamond core drill bit, reaming shell. Available in multiple standard configurations and selected on the basis of relative rock hardness and ground conditions.

Reaming shell is used to protect drill bit,should couple the Impregnated diamond drill bit with the core barrel. It’s can set with natural or synthetic diamond, Polycrystalline diamond embedded in the circle side.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. 

With ISO9001 :2008  certificate & quality control.
Sizes Available as followings: 
T Series: T36, T46, T56, T66, T76, T86 ,
WF Series: HWF, 
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,

Non-standard also can be made depending on your demand.beside core bit,we also produce no-coring bit.