It's hard to tell from the picture, but to me they look like they are about 1/8" thick.
That is thickness of most saw wrenches, as the TS blade nut doesn't take a lot of foot pounds of torque.
They are threaded to the same direction of rotation, to resist be loosened by the rotational forces.
Since it looks smaller to me, it could also be a router wrench. I've seen some that look similar to that for trim routers.