| Customized: | Customized |
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| Standard: | API |
| Length: | Jobber-length |
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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
Audited Supplier
Ruishi owns full production lines of PDC bit and core bit, which is covering all size of the 2"-26" bit.
| API Standard Size of Tricone/PDC Bit | |||
| Inch | MM | Inch | MM |
| 6 | 152.4 | 10 1/2 | 266.7 |
| 6 1/4 | 158.8 | 11 1/2 | 292.1 |
| 6 1/2 | 165.1 | 12 1/4 | 311.2 |
| 6 3/4 | 171.4 | 14 3/4 | 374.6 |
| 7 1/2 | 190.5 | 16 | 406.4 |
| 8 1/2 | 215.9 | 20 | 508 |
| 9 1/2 | 241.3 | 26 | 660.4 |
Ruishi has been promoting the comprehensive quality management and focus on the customer's demand. In order to ensure the stability of quality and the excellent performance of the bit, we strictly comply with the ISO9001 quality management system and ISO14001 environmental management system and OHSAS18001 Occupational health and safety management system in the enterprise operation, and strictly implement API Spec7-1 quality management standards in the process of production.
The company has a number of experts experienced in diamond bit design of drilling technology, and is equipped with 5-axis machining center, NC lathes , NC sintering furnace, Ring sewing machine and other advanced production equipment. We are using domestic and foreign advanced professional design software, and doing continuous technological innovation and sustainable development.
It is usually packed in Iron boxes or wooden boxes, and can also be customized according to customer requirements
Innovative Development Strategist
Q:Are your company a trading company or manufacturing factory:
A: We are professional manufacture with over +20 experience
Q:Accepted Payment Terms:
A:T/T, L/C, Paypal
Q:Guarantee and Warranty of Quality:
A: We are an API and ISO certified factory, we has also employed famous experts as product development consultant and build technical service .Have a strong and effective after-sales service team
Q: Can I visit your factory online?
A:Yes, we can show our workshop, warehouse, offices online by WeChat, Whatsapp
Suppliers with verified business licenses
Audited Supplier 
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