Kevin, if you're talking about the rounded ends here:


[IMG]https://hosting.photobucket.com/images/y167/rmccartney/18/IMG_6748.JPG[/IMG]


I have a ball end die grinder about 1/2" diameter that I use in there. Still pulling them slivers out!!! I'll get a picture of all the implements of destruction when I'm in the shop this weekend.