Transom repair???

[jetblue319]

Well , after a long break , the weather starting to cool off here in Tampa. Started back on my transom repair. 16 inch chainsaw and 1 1/2 auger drill bit, I got to do some rotted plywood removal. Liked the auger bit better along with a wood chisel. Still having issues with wood removal at bottom of transom especially near center. I think I need a new chain for the chainsaw. To get inside the deep ends. Advice always welcome photos coming.
Jet