Cyclus Tools | Cutting Tool and Milling Cutter for BSA

The Cyclus Tools Cutting & Milling Tool for BSA threads is a professional tool specially designed for recutting bottom bracket threads and milling the bottom bracket shell.

After recutting the thread, remove the cutting tool and use the milling tool. You do not need to remount the tool, ensuring 100% milling of the bottom bracket shell faces. It was specially developed for recutting threads and milling bottom bracket shells.

It combines the two operations into a single process, so changing or adjusting the tools is unnecessary.

Precisely milling the bottom bracket shell faces ensures that the shells are 100% parallel to each other and perpendicular to the threads. This is very important for bottom brackets with external cups, such as Campagnolo Ultra Torque and Shimano Hollowtech II.

Benefits:

• Two machining processes in one: it cuts the bottom bracket threads and mills the shell in a single operation without changing tools.
• Save space, time, and money, as only one tool is required.
• The two-part tool, when assembled, provides a precise guide for cutting parallel faces on the shells.

3 steps:

1. Cut the bottom bracket thread.
2. Remove the cutting tool.
3. Mill bottom bracket shells.

Note: Letters or markings used on the tool always refer to the tool itself. If an "R" is used on one side, it indicates a conventional right-hand thread—clockwise. If an "L" is used, the direction is left—counterclockwise.

This does not refer to the side of the bicycle, as there is no fixed reference system here!