Dave,
If you mean the hole in the hand wheel, no. The dowel that slides into the hand wheel started out snug, but over time has loosened up a bit.
It's just held in by what little friction remains, but it's still working, so I haven't made the "better," new and improved version yet.
If I was drilling with hefty fostners, I'd probably rig up something like Paul shows, but for light to medium drilling, this works a champ.
Quick and easy on and off.
Another thing I would add is I spend a little more maintenance on the quill and lead screw, cleaning and lubing if I'm doing a lot of drilling.