Is there a place to get the tool specs for the bits sold on this site
Which specs? Things like diameter and angle are in the description. The rest, like feeds and speeds, are very machine dependent.
So like using a low rider on mdf
Any guide lines?
There are conservative settings on the milling basics page, but you really need to run your own tests. Every machine is different and every material is different.
Even the weather can make a huge difference.
I live in a desert, normally pine cuts cleanly and easily, during higher humidity days pine starts to shred more and is more difficult to get clean cuts. Same with MDF unless it has a higher bonding agent than normal.