This tap kit is REQUIRED to install a OneUp EDC Tool.TAPPING INSTRUCTIONS (video below): Remove your old star-nut and tap the top of your steerer tube. This might sound daunting, but we&';ve made it super easy to do on your bike, without even removing your fork. Remove your bar and stem Use the OneUp star-nut puller to remove your old star nut Using the self aligning steerer tap kit, tap a thread into your steerer until the tap bottoms out.