| Place of Origin: | CHINA |
| Brand Name: | MIROC |
| Certification: | ISO |
| Model Number: | NUMA100 |
| Minimum Order Quantity: | 1 |
|---|---|
| Delivery Time: | 20-30 |
| Supply Ability: | 3000 |
| Model NO.: | Numa100-305 | Type: | Drill Bit |
|---|---|---|---|
| Material: | Carbon Steel | Usage: | Well Drilling, Ore Mining |
| Model Number: | Cop, DHD, Mission, Ql, SD, CIR, BR | Face Design: | Flat Face, Convex Face, Concave Face |
| Highlight: | Large Size DTH Hammer Bit,Excellent Straightness Down-The-Hole Drill Bit,Carbide Inserts NUMA100 Bit |
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| Head Shape | Head Diameter(mm) | Shank Length (mm) | Spline | Port holes | Button qty pcs x dia mm | Weight (kg) | ||
| Button Type | Gauge Buttons | Front Buttons | ||||||
| concave face | 254 | 375 | 10 | 2 | Domed | 12×φ19 | 8×φ18+19×φ16 | 89 |
| concave face | 275 | 375 | 10 | 2 | Domed | 12×φ19 | 8×φ18+20×φ16 | 93.5 |
| concave face | 305 | 375 | 10 | 3 | Domed | 15×φ19 | 27×φ18+8×φ16 | 103.5 |
| concave face | 325 | 375 | 10 | 3 | Domed | 15×φ19 | 27×φ18+9×φ16 | 112 |
| concave face | 350 | 375 | 10 | 4 | Domed | 16×φ19 | 32×φ18+14×φ16 | 121 |
| concave face | 400 | 375 | 10 | 4 | Domed | 16×φ19 | 40×φ18+25×φ16 | 146.5 |
Contact Person: Mr. Yingkai Zhang
Tel: +86 18501231988