| Customized: | Customized |
|---|---|
| Standard: | API |
| Length: | Diameter:165mm |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
| BIT SPECIFICATION | |
| Bit Size | 6 1/2''(165mm) |
| IADC Code | 537 |
| Series | HR |
| Tooth type | steel tooth |
| Connection | 3 1/2API REG PIN |
| Bearing | rubber sealed bearing |
| Nozzle | three jet nozzles |
| Rotary Speed(rpm) | 120~50 |
| Weight on Bit(KN/MM) | 0.45~1.0 |
| Application | water well,oil well,HDD,exploration,etc |
| Formation | Soft to medium formations with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc. |
Bearing Structure
High precision journal bearing with two thrust faces. Ball locked cone. Hardfaced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved, and suitable for high rotary speed.
Cutting Structure
Reinforcing the comprehensive mechanical properties of cutting tooth by using high quality tungsten carbide inserts of new formula and new techniques of insert bit. Widened crest insert improved the bit aggressivity and penetration rate.
Gauge Structure
The multiple heel position with gauge trimmer on the heel, tungsten carbide and hardfacing on the shirttail, strengthened spear point will enhance the gauge protection.
| IADC | WOB (KN/mm) |
RPM (r/min) |
Applicable Formations |
| 417/437/ 447/415/435 |
0.35~0.9 | 150~70 | Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, gypsum, salt, soft limestone, etc. |
| 517/527/515 | 0.35~1.0 | 140~60 | Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. |
| 537/547/535 | 0.45~1.0 | 120~50 | Soft to medium formations with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc. |
| 617/615 | 0.45~1.1 | 90~50 | Medium hard formation with high compress strength, such as hard shale, limestone, sandstone, dolomite. etc |
| 637/635 | 0.5~1.2 | 80~40 | Hard formations with high compressive strength, such as sandstone, limestone, dolomite ,hard gypsum, marble, etc. |
| Note: The upper limits of WOB and RPM in above table should not be used simultaneously. | |||
| Packing | ||||||
| Wood Box Fumigation Tray if necessary Other special package can be applied according to customer's need |
||||||
| Delivery | ||||||
| Prepared to deliver within 3 week, if in stock Depends on order quantity, when out of stock Transportation:By sea or air |
||||||
1. Can you tell me about your products?
A: Our products and services are accredited to ISO 9001:2008, ensuring that our mature production technology guarantees international-quality products. We offer many high-quality products.
2. What is your packaging and delivery process?
A: We use high-quality export cartons or standard export wooden cases for packaging.
3. How long does delivery take?
A: If the product is in stock, we can deliver it within a week. If it is out of stock, delivery can take 7-30 days depending on the order quantity. Transportation is available by sea or air.
4. How can I order your products?
A: Simply send us an inquiry with a detailed item description or model number. If you have no packing preference, we will use the standard sea-way packing. To avoid any confusion, please attach a reference picture or link to our website for better understanding.
){kind=link}