How do you get the wheels on a Tech Deck?

you can take a 4 pencil white erasers from the pencil or any color then take a drillbit that will make a hole out of itbut make the hole is really cleanthen take a 1/8 drillbit drill the eraser about an half oh ya when you cut the eraser make sure use a blade so if will be the same size and ya that's it make sure drill all the pelcil erasers