Why is my Festool Domino DF 500 Power Tool creating a tapered mortise slot?
- Iisaiah99Sep 23, 2025
If you're getting a tapered mortise slot with your Festool Power Tool, and the Domino tenon only fits part way into the slot, the plunge speed is likely too fast, preventing the bit from cutting the sides properly. Try slowing down the plunge speed.














