| After-sales Service: | Provide |
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| Warranty: | 6 Months |
| Certification: | CE |
| Surface Treatment: | Spray-Paint |
| Manufacturing Process: | Forging |
| Material: | Carbon Steel |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier Taper Drilling Rock Crown Button Bit and Drill String Steel Rod for Quarry Borehole in Granite Mining Site
Product Characteristic:
1.Button bit taper angle: 7°,11°,12°
2.Length: 50/55/71/80 mm
3.Diameter: 30-42 mm
4.Button bit shape: spherical/parabolic
5.Socket inside diameter: 15/19/22/25(mm)
6.Material and process: high quality alloy steel bar and tungsten carbides, through heat treatment
1. Are you exact manufacturer or just trading company?
We are both, we have our own factory. And also have many long-relationship factories.
2.What is your minimum order quantity?
Our MOQ are 1pc or 1 complete set, the price may rely on the order quantity. We are welcome your sample order to testing our quality.
3. Can you accept OEM & ODM?
Yes, both of them are acceptable,.Please tell us your requirements or design drawings kindly. As we have our own R&D team and the team leader is Dr.Zhao mingchun who has been always in the material research and drawing design of drilling tools for 25 years. And he had designed the world's biggest top hammer bit and DTH hammer bit, highly praised by the users.
4. How about the delivery time?
It depends, generally it takes about 15-25. If have stocks, Usually only 5-10 days if in stock.
5. Can I have a visit to your factory before the order?
Sure, welcome, kindly contact us for address details and time schedule.
Suppliers with verified business licenses
Audited Supplier 
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