| Customization: | Available |
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| After-sales Service: | Select The Most Suitable Product |
| Warranty: | 3 Month |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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| Payment Methods: |
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| Support payments in USD |
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| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
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| Basical Specification | |
| Size | 8 3/4 inchs |
| IADC Code: | 517 |
| Thread Connection | 4 1/2'' API REG PIN |
| Type | TCI tooth |
| N.W/G.W(kg) | 39/41 |
| Formations | Vary from 114--637 applicable for the hole drilling in the upper section with good drill ability. |
-Tricone drill bits: A tricone bit comprises three conical rollers with teeth made of a hard material, such as tungsten carbide. The teeth break rock by crushing as the rollers move around the bottom of the borehole.
-At present, sizes ranging from 3 7/8 " to 26" have been developed, which can be applied to different formations from soft to very hard.
-Those designs are compatible with different drilling technologies such as conventional drilling and directional drilling.
-TCI tooth bit size:
417 427 437 517 527 537 617 627 637 737 837 832 415 425 435 445 525 625 635 416 427 436 446 447 516 526 537 547 516 536 535
-Bearing bit
1.sealed bearing and non-sealed bearing
2.metal sealed journal bearing
3.rubber sealed journal bearing
4.aircooled bearing type
|
in
|
mm
|
in
|
KN.M
|
|
|
6
|
152.4
|
3 1/2
|
9.5-12.2
|
|
|
6 1/8
|
155.6
|
3 1/2
|
9.5-122
|
|
|
6 1/4
|
158.8
|
3 1/2
|
9.5-12.2
|
|
|
6 1/2
|
165.1
|
3 1/2
|
9.5-12.2
|
|
|
6 5/8
|
168.3
|
3 1/2
|
9.5-12.2
|
|
|
6 3/4
|
171.5
|
3 1/2
|
9.5-12.2
|
|
|
7 1/2
|
190.5
|
4 1/2
|
16.3-21.7
|
|
|
7 5/8
|
193.7
|
4 1/2
|
16.3-21.7
|
|
|
7 7/8
|
200.0
|
4 1/2
|
16.3-21.7
|
|
|
8 3/8
|
212.7
|
4 1/2
|
16.3-21.7
|
|
|
8 1/2
|
215.9
|
4 1/2
|
16.3-21.7
|
|
|
8 5/8
|
219.1.
|
4 1/2
|
16.3-21.7
|
|
|
8 3/4
|
222.3
|
4 1/2
|
16.3-21.7
|
|
|
9 1/2
|
241.3
|
6 5/8
|
38-43.4
|
|
|
9 5/8
|
244.5
|
6 5/8
|
38-43.4
|
|
|
9 7/8
|
250.8
|
6 5/8
|
38-43.4
|
|
|
10 1/2
|
266.7
|
6 5/8
|
38-43.4
|
|
|
10 5/8
|
269.9
|
6 5/8
|
38-43.4
|
|
|
11
|
279.4
|
6 5/8
|
38-43.4
|
|
|
11 5/8
|
295.3
|
6 5/8
|
38-43.4
|
|
|
12
|
304.8
|
6 5/8
|
38-43.4
|
|
|
12 1/4
|
311.2
|
6 5/8
|
38-43.4
|
|
|
12 5/16
|
312.7
|
6 5/8
|
38-43.4
|
|
|
12 3/8
|
314.3
|
6 5/8
|
38-43.4
|
|
|
12 7/16
|
315.9
|
6 5/8
|
38-43.4
|
|
|
12 5/8
|
320.7
|
6 5/8
|
38-43.4
|
|
|
13 1/8
|
333.4
|
6 5/8
|
38-43.4
|
|
|
13 1/2
|
342.9
|
6 5/8
|
38-43.4
|
|
|
13 5/8
|
346.1
|
6 5/8
|
38-43.4
|
|
|
13 3/4
|
349.3
|
6 5/8
|
38-43.4
|
|
We normally have stock, we can prepare shipment within 3 days after placing order.
We service for :
*Tenders from national enterprise.
*Drilling contractors.
*Construction projects.
*Water well drilling, exploration, etc.
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