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| Name︰ | Concave four wings Drill Bit |
| Model No.︰ | FWN4J |
| Brand Name︰ | JINSHUO |
| Country of Origin︰ | China |
| Unit Price︰ | CNY ¥ 2500 / pc |
| Minimum Order︰ | 100 pc |
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| With longer service life compared with concave three wings type,good stablity,excellent ability in the big gauge.the bit is of super quality and competetive price. |
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