I found a company that makes aftermarket knockout tips for the Citizen knock out rod. They call them deflecto tips because the deflect the air or high pressure out-wards. This would really wash the chips out
They sent me a pdf sheet on them.
http://www.verosllc.com/VerosSwiss/
Here is a video of it.
[ame="http://www.youtube.com/watch?v=O8GdQ5SJN1c"]YouTube - Veros Swiss Deflecto Tip Knockout Demonstration[/ame]
They said they are also making Drover nuts for the L20 series 4 (non-windows) & 5 & 7(windows). remember the old wrench type on the 3 & 4 series? That always got buggered up.
Citizen wants an arm and a leg for anything now.