11-13-2014, 02:28 PM
I went ahead and bought the R8-1" shell mill holder that Ed had found on eBay. It appears to have been made in Canada, but that isn't the most important feature for me. I prefer the fact that the keys are fastened on from the bottom, effectively "captivated" as soon as a cutter is installed.
All the others I found showed the keys were screwed on from the side, much weaker.
All the others I found showed the keys were screwed on from the side, much weaker.