The drain pipe under my sink broke and the threads from this pipe are stuck in the wall pipe. How do I get these threads out of the pipe. Have been unable to grab and turn with any tools.

You could try cutting across the threads with a hacksaw blade and then try peeling the broken off pieces with a chisel and hammer.

If that doesn't work, you may have to cut the fitting out and use shielded couplings to install a new fitting.

The drain pipe under my sink broke and the threads from this pipe are stuck in the wall pipe. How do I get these threads out of the pipe. Have been unable to grab and turn with any tools.
Picture?

Inside pipe wrench? I can't visualize picture.