I always use fiberglass cutting discs for my dremal tool.
I ran out a while back so as I finished laying my track today, I went through 6 disc that dremal supply
So I put two together and dada!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
They last and last
the cut is a bit bigger but alowing for that I am not
anymore 
I ran out a while back so as I finished laying my track today, I went through 6 disc that dremal supply

So I put two together and dada!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

They last and last







