You need bigger tools. An 8+ pound sledge hammer. Just be sure the smashing happens on concrete or any hard flat surface. Hit the area where the platters would be. Should only take 1 - 3 hits a piece. Once you hear sand inside you’re done.
My 30lb sledge delete drives in one hit usually. Turns the platters back into dust lol.
I’ve been meaning to do more testing with it’s built in blocking. Guess we’ll have to see when the time comes.