crown drill we are specially developed for the bearing hole machining. Compare with the traditional crown drill, the feature of our product is the removable inserts. It brings significant cost-efficiency. Crown drill is formed by body, drill tip and edge cutter.
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Email:service@halnn-group.com
Address:R & D 5B, National University Science and Technology Park, National University, Changchou Road, Zhengzhou High-tech Zone