Accessories and replacements parts for Park Tool head and steerer tube cutting tools.

• Nominal outside diameter of 65mm
• Faces headtube faces up to the ZS56 or EC56
• Used with Park Tool’s 750 Centering Cone Adaptor and 789 Reamer or 790 Pilot when facing head tubes with 55.95 – 55.90mm I.D. and up to 65.0mm O.D. (“Internal” 1-1/2″ ZS Standard)