| After-sales Service: | Yes |
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| Warranty: | 1 Year |
| 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
Suppliers with verified business licenses
Audited Supplier 
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