The Bicycle star nut tool is essential when fitting star nuts to make the start nut sit squarely in the head tube, helping the stem bolt to fit snugly and help prevent cross threading of not and headset bolt.
Installation steps:
1. Screw on the star nut, screwed to the end.
2. Screw the star nut tool aligned with the fork, set the sleeve and hold it by hand.
3. Use a rubber hammer to knock the star nut rod into place to complete the installation.
