Not sure if this is already reported (i had a quick look and it does not appear to be)...
My tooltable shows the wrong ToolType, e.g. SlotCutter instead of EndMill.
I had one old entry (the first one), and as soon as I edited it, it jumped to Tap (which is one before)
OS: Debian GNU/Linux testing (buster)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.13180 (Git)
Build type: None
Branch: master
Hash: d9627d5311eadc31dee647bcc1650d02d0a30830
Python version: 2.7.14
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.1.0
Locale: German/Austria (de_AT)