solve this, I found that a 3/4" PVC tee with a 1/2" threaded
tail fits perfectly (with a few taps of a hammer) on the end. This
allows much more surface area against the hand (lessening blisters), and
if placed perpendicular to the blade, better control as well.
also works well on shovels, hula hoes, and other tools without a
horizontal grip - just select your PVC size accordingly. You may
also anchor it into the handle by pre-drilling the PVC and adding a few screws.