It is. And the roller is on an eccentric cam, to you can rotate that 90 degree to lift the angle of the guide slightly and do a micro bevel without having to reset the holder.
They are very nice. I use one but they are tricky to get small plane blades to stay in place. Apparently there's a aftermarket bit you can buy to improve it. Someone linked to it in this thread a while back but I can't find it.
I think it's the best one though and it's great to handle.
It is. And the roller is on an eccentric cam, to you can rotate that 90 degree to lift the angle of the guide slightly and do a micro bevel without having to reset the holder.