The casing shoe bit is mainly used in handling casing tube in the shallow earth surfaces, and we have casing shoes bit in different hardness to better fit various casing tube bits
The casing shoe diamond bit is mainly made up of diamond single crystal steel body, tungsten carbide and polycrystalline diamond
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.
Technical parameter:
Specification | Outer diameter | Inner diameter | Length of thread |
BW | 75 | 60 | 63 |
NW | 91 | 76 | 69 |
HW | 117 | 99 | 76 |
PW | 143 | 121 | 82 |
