| Customization: | Available |
|---|---|
| After-sales Service: | Select The Most Suitable Product |
| Warranty: | 3 Month |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
| Payment Methods: |
|
|---|---|
| Support payments in USD |
| Secure payments: | Every payment you make on Made-in-China.com is protected by the platform. |
|---|
| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
|---|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
| Basical Specification | |
| Size | 8 1/2 inchs |
| IADC Code: | 217 |
| Thread Connection | 4 1/2'' API REG PIN |
| Type | Steel tooth |
| N.W/G.W(kg) | 38/40 |
| 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
-Steel tooth bit size:
116 117 126 127 136 137 216 217 226 316 317 326 327 336 337 115 125 135 215 225 235 315 325 335 114 124 214 314 111 121 131 346 347
-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 supply various types of drill bits ,such as button bit,PDC Bit, PDC Drag Bit,core bit etc.
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.
){kind=link}