The #768 Pilot is used for a facing-only option with the "low profile" or "zero stack" headsets when used with the 690-XL facer. These headtubes are nominally 43.9mm inside diameter. Used with 690XL Facing Cutter and 750 Centering Cone Adaptor.
SHIS terminology: The 768 is used for ZS44 and EC44 lower and upper headtubes.
NOTE: For sharpening services of cutting tool see Park Tool Sharpening Services. Always use cutting fluid such as Park Tool CF-2 when machining.
