Casement window operator?

A handy person from California says:
May 17, 2021
The handle broke and the set screw is rusted in there good. Do you know what model/brand of operator this is as I think I need to replace the operator or is there a way to replace just the crank part and but a couple new handles. There is no manufacture name? The length of the arm is 8" then it bends a bit. I can send more pictures if that would help.
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Thumbnail of the uploaded file named Roto
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Casey from SWISCO responded:
May 19, 2021

Hello,

Your window might use our 39-429 and 39-430, depending on how the dimensions compare. If you're able to remove the base of the handle still attached to the base, see our 39-232. Thank you!
A handy person from California says:
May 27, 2021
are the dimensions of the operators on the website or specs? The arm is straight for about 8" and then it turns.... sounds like it might be one of the 3 above? Is that correct?
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Tom from SWISCO responded:
May 28, 2021

We do show the arm length on the 39-429 store page that Casey linked to, yes. I will also post it here for your convenience. What you want to do is measure from the center of the hole at the end of the arm to the center of the base. If yours is 8" to the bend, then odds are if you measured it like we do then you'd get 9-1/2".

Alternate image for 39-429
Alternate image for 39-429
Roto Folding Crank Handle, 11/32"
Roto Folding Crank Handle, 11/32"
39-232
$10.80
Roto Single Arm Operator, 9-1/2"
Roto Single Arm Operator, 9-1/2"
39-429
$28.90
Roto Single Arm Operator, 9-1/2"
Roto Single Arm Operator, 9-1/2"
39-430
$28.90
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