Folding Crank Handle

A quick learner from Cohoes, New York says:
How does the folding crank handle attach to the casement operator which has a serated(?) end? Would this type handle allow you to overcome an extra wide sill and be able to open a casement window? Do you know if Andersen makes extensions?
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Tom from SWISCO responded:
Good afternoon. If your handle is hitting the sill, then I'm not sure if our 39-301 would work anyway. A T handle would be better, like our 39-298, but that also might not work. Unfortunately, with an Andersen casement operator and a wide sill, there isn't much you can do.
A home owner from michigan says:
I would like to know if the 39-298 handle will work with the 39-154 cover (for an older Anderson casement window)as the crank always hits. Thank you!
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Tom from SWISCO responded:
The 39-298 can work with the 39-154 cover, yes.
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