M40 shank 105 110 115 120 127mm 4 inches DTH hammer drill bit button bit foot valve valveless rig quality long life mining
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- Supplier: Changsha Wontech Engineering Machinery Co. ltd.
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Product Overview
Description
M40 shank 105 110 115 120 127mm 4 inches DTH hammer drill bit button bit foot valve valveless rig quality long life mining
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Product Description
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| 1. Two types of DTH hammer: hammer with foot valve or hammer without foot valve. |
| 2. Material: Carbide |
| 3. Air holes: Designed and made for good cutting flush off capacity to increase drilling efficiency. |
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