Product DescriptionThe Park Tool 761S.2 Reamer and Spacer Set is a 42.0mm head tube reaming tool set designed for use with the Park Tool HTR-1 Head Tube Reaming and Facing Set. It is made for head tubes using the IS42 or Campagnolo 42mm x 45° headset standard and includes the #755 spacer for deeper cuts on lower IS42 headsets. This set is intended for professional frame prep and headset machining applications where precise reaming depth and correct standard-specific fit are critical. Key Features 42.0mm reamer and spacer set Designed for IS42 and Campagnolo 42mm x 45° headset standards For use with the Park Tool HTR-1 Head Tube Reaming and Facing Set Includes #755 spacer for deeper cuts on lower IS42 headsets Sized for Campagnolo standard headsets Requires Park Tool 750.2 Centering Cone Adapter Specifications Brand: Park Tool Model: 761S.2 Product Type: Reamer and Spacer Set Reamer Size: 42.0mm O.D. Headset Standard: IS42 / Campagnolo 42mm x 45° Use: Head tube reaming SHIS Compatibility: IS42 CompatibilityCompatible with: Park Tool HTR-1 Head Tube Reaming and Facing Set Park Tool 750.2 Centering Cone Adapter Head tube / headset standard compatibility: IS42 Campagnolo 42mm x 45° standard headsets Included Park Tool 761S.2 42.0mm reamer Park Tool #755 spacer Warranty and Notes Includes spacer for deeper cuts on lower IS42 headsets Always use cutting fluid such as Park Tool CF-2 when machining Includes only what is shown or described Condition New Genuine OEM product Includes only what is shown or described