I finally found a place that has a pocket t-square and a points ignition file. They are at Northern Tool + Equipment at Spring Creek and 75 (Plano).
The pocket t-square has mm and inches.
Northern Tool is a chain and it id like HF but smaller and looks to have better made stuff.
Nowhere else around McKinney have I been able to put my hands on these. So, Gordon, Broshi and anyone else around here need those, go there!