Boring Tool, Anti Vibration Boring Bar, Drilling manufacturer / supplier in China, offering High-Precision Chuck Bt40A D14 L120 Hydraulic Tool Holder for CNC Machining, High-Precision Chuck Bt40A D14 L90 Hydraulic Tool Holder for CNC Machining, High-Precision OEM ODM Bt40A D12 L140 Hydraulic Tool Holder for CNC Machining and so on.