Bottom bracket facing kit

- to clean up the faces of the bottom bracket shell of a threaded frame- to remove excess paint from the BB shell to perfectly fit external bottom bracket cups- to also convert a 73mm bottom bracket to a 68mm bottom bracket- tension spring and tension nuts apply a gentle pressure not to get a chattering appearance- comes with cutter CD-38310-45 , 2 BSC guides CD-38320-1.370 and assembly key CD-38330 - to be used with bottom bracket tapping set CD-38200 from serial code L2To be used with cutting oil CD-77000