On Friday, May 21, 2021 at 7:10:56 PM UTC-5, wrote:
I'm surprised the dog holes last. I have some benches made out of MDF
on solid core doors (particle board). I was planning to drill (route)
dog holes in it but was afraid they wouldn't hold up.

I wonder if the term "dog holes" are being stretched here. I think Leon uses the holes with the Festool clamps, which do not rely on the strength of the hole or having a thick table. Traditional dogs require at least 1 1/2" table thickness. I use 3/4" round dogs and hold-down clamps. I have a re-purposed dining table that has a 3/4" solid wood top. I glued pieces of 3/4" baltic birch underneath, then drilled 3/4" holes using the Leevalley 3/4" drill guide to drill the holes with a hand drill. It works really well and seems to be holding up.

Bob