The two outer blades alone are supposed give a 1/4" dado. But it's more like 0.225" instead of 0.25". Not even close! So everything else is off by the same 1/40", and I have to use shims for everything. Ridiculous. I thought maybe metric blades had gotten in there by mistake, but that doesn't make sense because 0.225" is about 5.7mm. Last time I ever buy Freud.