108mm Concentric 3-Wing Casing Drill Bit for CIR90 Hammer - 115mm Reaming Diameter ODEX System
New design 108mm concentric 3-wing casing drilling bit engineered for CIR90 hammer systems in overburden drilling applications.
| 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 |
- Surface hardening treatment for extended operating life and superior anti-wear properties
- Optimized structural design for enhanced strength and operational efficiency
- Stable and reliable performance with high drilling speed capabilities
Specifically designed for soft and loose ground conditions with scattered boulders, this concentric casing drilling system enables simultaneous drilling and casing installation to prevent soil collapse into drilled holes. The system drills hole diameters larger than casing diameters, allowing easy withdrawal of DTH hammer and overburden drill system upon reaching required depth.
Order Guide: Casing Tube OD & ID + Reamer Bit Diameter + Minimal Casing Shoe ID + Hammer Shank Style
Custom MRS system sizes available upon customer request.
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