R8 Collet Chuck Holder Metric M12 Thread Milling Clamping 3~20mm for Bridgeport

Suitable for all kinds of milling machine spindle taper hole for the R8. It used for clamping tools,change the taper hole of spindle,It is easy to use,to enlarge the use range of machine tool. Drawbar Thread: M12x1.75.

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