The park tool bts 1 bottom bracket tapping and facing set is a precision tool system which provides a piloted means of tapping the threads in the bottom bracket shell of a frame after tapping the taps act as guides to keep the included facing cutter perfectly square with the axis of the bottom bracket for cleanup of the faces of the bottom bracket shell park tool bts 1 bottom bracket tapping and facing set features a precision tool that provides a piloted means of tapping threa