JackHammer
Chumono
Put some sphagum moss in a bag or yogurt container and fashion it where you want the roots to grow (maybe you could also use peat or coconut shredding, something like that). You can cut the bark away to the heartwood but I have found that it is often unnecessary on figs/ficus. You can just set it up and keep an eye on it. If you are worried, just don't cut the bark and see if it roots over the winter. If you have grow lights, it may root just fine. Check it out in the spring, if it didn't root, set it up again but cut a ring in the bark to encourage the new roots.