Attended the Klingspor Extravaganza this weekend -- great event, great time and some good deals. With respect the good deals, I purchased a Shelix Cutter; I have wanted to pull this trigger for a longtime and finally did this weekend. I installed it today and it works great. I do have one question however...you will note in the picture below that there are three holes bored in one end of the cutterhead...I can't figure out if this is a machining mistake or do they serve some purpose (e.g. remove a little weight to achieve better balance when spinning at high speed). Like I mentioned, the cutter works very well, I am just curious.