replacement awning window crank

A home owner from Tonawanda New York says:
Hello, attached are photos of the crank on my awning window. The handle keeps falling off as there is no set screw to tighten. At full extension the arms are 12"and the interior cover is 4 5/8 ".
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Bob from SWISCO responded:

Hello there. I see you were looking at our 39-393 Awning Operator, and I agree this looks promising. Just review the dimensions below to see if this matches what you have; let me know if anything differs. For a new handle that works with this operator, see the 39-232.

Alternate view of 39-393
Alternate view of 39-393

How to identify casement and awning operators
How to identify casement and awning operators
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