Herb, that is excellent. Did you do that? Part of a class?
I've been thinking of using a QH on my next box project and looked at a number of videos and such on the web. All of them went into the lower part but splitting the difference makes a lot of sense.
As to insertion depth of a bit. Some of my bits (freuds but not all) come with a min insertion mark on the shaft. I learned that this should be ignored and at the very least have the shaft have contact with the full length of the collet. I always remove my collets to insert a bit and make sure that the top end of the shaft is at least flush with the top of the collet. Not only is that safer, it also minimizes runout. While you may not think that's important, if you are making a precise slot (think dove tails or box joints) even a small error is a problem. Even 0.01" makes for loose box joints, for example.
Measure twice, cut once and CROSS OUT THE WRONG MARKS.
Last edited by PhilBa; 01-07-2016 at 03:00 PM.