Recently bought a new Milwaukee m18 circular saw. I put a thin blade on it and something isn't right. If I loosen the bolt, it slips. But if I tighten it seems bogged down and there isn't a happy medium in between. It seems to me that the inner flange is flipped around backwards but I can not get it out. It seems in a fixed position or is it just ground into the black plastic under it? This is my 1st circular saw so I'm not sure. Any help on the cause and any help on a fix would be greatly appreciated. 1st pic is of my saw, 2nd is another pic I found online with similar problem. Thanks, Kyle