Boring Tool, Anti Vibration Boring Bar, Drilling manufacturer / supplier in China, offering OEM ODM Chuck Bt30A D12L60 Shrink Fit Tool Holder for CNC Machining, OEM ODM Chuck Bt30A D3l60 Shrink Fit Tool Holder for CNC Machining, High-Precision Chuck Bt30A D10 L60 Shrink Fit Tool Holder for CNC Machining and so on.