looking for a new dado set and found something i had not heard of before

freud has a box joint set

two blades

one formation gives you 3/8 inch and the other gives you 1/4 inch

would probably meet my needs but it is not cheap

may just go with a 6 inch dado set from hf with a 20 off coupon
anyone have an hf dado set

freud also has a dial a width dado set which is 260 dollars or more