I was half way through the front cut when the disc just stopped cutting. Huh??? When it got close to the material and started to cut it would just stop. Checked the disc and it had over-centered. Put in the second disc, It made it the rest of the way before it over-centered. So I at least finished the front and rear cuts, but did not get to the sides.
I will stop on the way home and get some new discs.
