Changsha Miracleland Import & Export Co., Ltd
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Casing Bit:
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.
If you need any further information, please feel free to contact with us, we will be quite pleased to show all the details you asked for.
Dimensions of Casing Bits:
| Size | Outside Diameter | Inside Diameter |
| mm | mm | |
| RW | 37.6 | 25.4 |
| EW | 47.5 | 35.7 |
| AW | 59.5 | 45.2 |
| BW | 75.2 | 56.3 |
| NW | 91.8 | 72.2 |
| HW | 117.4 | 96.0 |
| PW | 143.4 | 117.7 |
| SW | 172.4 | 143.1 |
| UW | 198 | 171.6 |
| ZW | 223.6 | 197.3 |
| RX | 37.6 | 25.4 |
| EX | 47.5 | 35.7 |
| AX | 59.5 | 45.2 |
| BX | 75.2 | 56.3 |
| NX | 91.8 | 72.2 |
| HX | 117.4 | 96.0 |
| PX | 143.4 | 117.7 |
| SX | 172.4 | 143.1 |
| UX | 198 | 171.6 |
| ZX | 223.6 | 196.9 |
| 46 | 46 | 35 |
| 56 | 56 | 45 |
| 66 | 66 | 55 |
| 76 | 76 | 65 |
| 86 | 86 | 75 |
| 101 | 101 | 86.5 |
| 116 | 116 | 101.5 |
| 131 | 131 | 116.5 |
| 146 | 146 | 131.5 |