- The 690-XXL is a facing cutter designed to be used in conjunction with the HTR-1, HTR-1B, BFS-1, or BTS-1 to face head tubes and press fit bottom bracket shells.
- Faces the following headset standards:
- 1.5" internal cup
- SHIS terminology: The 690-XXL will face ZS56 and EC56 frames
- The 690-XXL will also face smaller bottom bracket and headset standards assuming there are no frame clearance issues
- Note: Always use cutting fluid such as Park Tool CF-2 when machining
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