Thread: Squaring Up Mortise And Glueing M & T

I'm learning to make interior, exterior house doors, I intend using a router with a straight cutter, aligned on the timber with 2 fences. I would pre drill half inch deep with a brad drill bit, then use the cutter, then drill again and cut, repeating until I reach the required depth. Would I use a mortise chisel or standard bevel one to square up the curved ends of the mortise slot? Someone said to round off the tenons.I'm not sure if rounding the tenons would be easy for me to do properly as have very little experience woodworking. Have read rounded tenons produce a weaker joint I've looked for info on net on how to square up the mortise slot but not been able to find anything.I don't know if cleaning up the slot is straightforward or not, any tips?
Also the size of the tenons with regard thickness of the door stiles, 1/3 or 1/2. How far should the tenon extend into the door stile?
What type of glue to use and glue suitable for external doors, I've read a bit about glue expansion. Should the tenon be a few mms shorter than the depth of the mortise?

Any tips on to fix some type of end stops on the timber when routing the mortise?

All help much appreciated.