Certification: | CE, RoHS, ISO 9001:2000, ISO 9001:2008 |
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Standard: | AISI |
Surface Treatment: | Polishing |
Samples: |
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Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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Payment Method: | |
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Initial Payment Full Payment |
Currency: | US$ |
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Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Application
Three wing drill bit is suitable for drilling extremely soft, soft, medium hard formations. With advanced cutting and line cutting functions, the three wing drill bit is widely used in geological exploration, water wells, coal fields, subway and other fields.
Notes: We can also design and manufacturer various non-standard drill tools.
Size |
Blades Qty |
Shape |
|
mm |
inch |
||
75 |
2 15/16 |
3 |
V(chevron) type, flat type, step type |
89 |
3 1/2 |
3 |
V(chevron) type, flat type, step type |
118 |
4 5/8 |
3 or 4 |
V(chevron) type, flat type, step type |
149 |
5 7/8 |
3 or 4 |
V(chevron) type, flat type, step type |
158 |
6 1/4 |
3 or 4 |
V(chevron) type, flat type, step type |
171 |
6 7/8 |
3 or 4 |
V(chevron) type, flat type, step type |
200 |
7 7/8 |
3 or 4 |
V(chevron) type, flat type, step type |
216 |
8 1/2 |
3 or 4 |
V(chevron) type, flat type, step type |
251 |
9 7/8 |
3 or 4 |
V(chevron) type, flat type, step type |
311 |
12 1/4 |
3 or 4 |
V(chevron) type, flat type, step type |
403 |
15 |
3 or 4 |
V(chevron) type, flat type, step type |
444 |
17 1/2 |
3 or 4 |
V(chevron) type, flat type, step type |
Suppliers with verified business licenses