Product name: New design108mm concentric 3 wings casing drilling bit for CIR90
Product category: Overburden casing drilling tools
Matched hammer: Hammer CIR90
Matched casing pipe OD: 108mm
New design concentric 3 wings casing drilling bit advantage:
1. Enhance penetration and perpendicularity
2. Deal with straight, oblique hole and other angle holes
Material: TIMKIN Steel. Tungsten carbide: YK05, T6 from Element Six in Germany
4. Kingdrilling DTH tools are forged by advanced electron-hydraulic forging hammer, and harness process is managed by multipurpose furnace heat treatment.
5.Quality: More than 40 Years engineer to make sure the quality, 100% inspection
New design concentric 3 wings casing drilling bit technical parameters:
| Technical Parameters |
| Model | Reaming Diameter(mm) | Casing Diameter(mm) | Equipped Hammer |
| NMK5E108 | 115 | 93-99 | 90 |
| NMK5E127 | 130 | 115-117 | 110 |
| NMK5E146 | 155 | 130-134 | 110/340 |
| NMK5E168 | 185 | 148-156 | 110/340 |
| NMK5E178 | 195 | 158-166 | 150/340 |
| NMK5E183 | 196 | 168-176 | 350/360 |
| NMK5E193 | 206 | 176-182 | 360 |
| NMK5E219 | 236 | 199-207 | 360 |
How to order:
Order Guide: Casing Tube OD & ID + Reamer Bit Diameter + Minimal Casing Shoe ID + Hammer Shank Style
Other size of MRS system is available upon customer's request
New design concentric 3 wings casing drilling bit are designed for economic cost of drilling in simultaneous casing advancement.
The wings are retracted by reverse rotation.
FAQ:
1. What is casing drilling?
Casing is a large diameter pipe that is assembled and inserted into a recently drilled section of a borehole. Similar to the bones of a spine protecting the spinal cord, casing is set inside the drilled borehole to protect and support the wellstream.
2. Why is percussion drilling used?
Cable percussion drilling is a tried and tested method of site investigation. The drilling technique allows the installation of casing inside the borehole to prevent loose soils collapsing into the hole, allowing the borehole to be advanced to considerable depths while maintaining good progress.
3. How much PSI do I need for air tools?
Between 70 and 90 PSI
Most air tools require between 70 and 90 PSI. Any light-to-medium-duty air compressor can easily handle 90 PSI, but you always want the compressor to supply more flow than needed. Pro Tip: Always respect a PSI rating. If you don't supply enough air volume, the tool won't operate correctly.
More information:
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