Does anyone know a smart way to undo the bolt of the crankshaft pulley??

I'm about to change my timing belt and this is the only thing that's stopping me from doing that

Someone from Holland has made up a smart piece of tool to do it. He makes and sells them, but i'd rather have a cheaper way to do it. I'm not changing timing belts every week so i think the tool would be a bit waste of money.

If you remove the crank position sensor you can lock the flywheel with a big screw driver.

Dai

I bought the special made tool after all. It seemed the best way to do it.

But thanks for the answer.