My tommy bars kept rolling away and hiding from me. These handles will keep them from rolling, provide a little extra grip, and make them more visible (I chose red to match my Sherline tools).
Cleaning up the hole with a 5/32' drill bit help get the handle started on the bar and then a few taps with a hammer provided a pretty snug fit.
Printed in PETG-HF but other materials should work fine too.
The author marked this model as their own original creation.