SuperB Bottom Bracket Taping Facing set b.b tool TB98150

 For English taps: 1.370” x 24 TPI right hand thread  
                           1.370” x 24 TPI left hand thread  
 A precision tool system and made of high grade steel.
 It is a professional tool for tapping the threads in the bottom bracket shell of a frame.
 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.