Aw Bw Nw Hw Pw Casing Shoe Bit For Geological Core Drilling
Casing Shoe Bit for Geological Core Drilling Aw, Bw, Nw, Hw, Pw
Product Description
Impregnated Casing Shoe Bit For Geological Drilling AW,BW,NW,HW,HWT,PW
The casing and rod shoes are threaded to the end of the outer drill string for penetration through overburden. It assists in seating the outer drill string into the bedrock, providing a tight seal for the drilling fluids to return to the surface. A casing shoe can be used to ream the casing downward when advancing a casing string in an existing hole with the rod string still in place.
The casing shoe inside diameter is flush or has clearance to the inside diameter of the casing which allows free passage of the core barrel through the shoe. Casing shoes are available in standard and heavy duty versions. The heavy duty version has an oversize outer diameter and 6mm crown height.
PARAMETER OF CASING SHOE
| TYPE | AW/B | BW/B | NW/B | HW/B | HWT/B | PW/B |
| O.D.(mm) | 59.5 | 75.2 | 91.8 | 117.4 | 117.4 | 143.4 |
| O.D.(inch) | 2.34 | 2.96 | 3.61 | 4.62 | 4.62 | 5.65 |
| I.D.(mm) | 48.3 | 60.2 | 76 | 99.7 | 99.7 | 123.4 |
| I.D.(inch) | 1.9 | 2.37 | 2.99 | 3.93 | 3.93 | 4.86 |
Details:
Impregnated casing shoes in Best Drilling use high quality natural diamonds as the material. They are widely used in various overburden formations.
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