Too deep??? Not for me. But I do have it somewhat organized.
There are 2 small tool bags in the box. One is black, it holds a couple large screw drivers, a couple cresent wrenches and an 8 piece wrench set. The other bag is grey, it holds all sorts of little things like spare clips, pins, top link pins, parts for the Pat's Easy Change, first aid kit, etc. The bigger stuff is pretty much visible. There is a small hand hatchet in there, probaby about 12" long. 1 anvil pruner, 16" long. 1 bypass pruner, 18" long. A 20' tow strap with metal hooks. A small pruning saw. There is plenty of space for other tools when I have a specific project to work on.
Now in all honesty I would have preferred a box a couple inches shorter, and a couple inches wider, but I couldn't find one that was perfect so I settled for second best. But I am VERY happy with the function of it and how it works for me.
What I also found was that large tool boxes that had enough volume were too wide to fit in that area. As each tractor model is different, I'm considering a different size tool box on my other tractor . . . just haven't found the right one yet.