Dial in threadless headsets like a boss with help from the Birzman Threadless Nut Setting Tool. This handy tool sits neatly on top of your star-flanged nut, and fits perfectly inside of 1-1/8in steer tubes. A lip on the top edge helps prevent you from hammering the star nut too far inside, and a large top makes it easy to set with a couple of taps from your mallet.
Set your star nut flawlessly with this tool
Neatly fits inside of 1 - 1/8in steer tubes
Lipped edge helps prevent setting a star nut too deep