Replacement window crank handle

A home owner from Freeland WA says:
August 19, 2023
Is this 39-114L, Crank Handle, 11/32" compatible with Milgard vinyl/wood clad windows? Our original Milgard window cranks have a rubber shaft in the crank that strips out over time. Milgard no longer carries these and the ones they do carry now doesn't fit the window cover so it is useless.

Attaching w photos of the window crank I am trying to replace.
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Bob from SWISCO responded:
August 20, 2023

Thanks for posting. Is the diameter of the spline that the handle fits onto 11/32"? If so, then yes, the 39-114L should work for you. You can always send a picture of the existing operator in its entirety, including the link arm(s), if you want further confirmation. The identity of the operator will tell me for sure what handles you can use. 
A home owner from Freeland WA says:
August 25, 2023
Sorry it has taken me so long to respond. Yes, the diameter of the spline is 11/32". I have taken a couple of photos of the operator as well. My husband backed the set screw out and reattached the crank all the way down and it tightened again and it seems to be working for the moment. They may not have been installed with the crank all the way down originally, but I would like to have reserve crank handles in the event these fail, so I would like confirmation if possible, that your crank handles are compatible with our Milgard product.

Thank you for your time and expertise.
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Bob from SWISCO responded:
August 27, 2023

Thanks for getting back to us! It's a good thing you sent these photos. This operator is a kind made by ROTO, and has a hex-shaped spline (the spline should come out to about 5/16" wide). Our 39-224 folding handle should work with this. Most likely your original handles had the hex shape hole to slot around that spline, but they wore down with age. I believe this is our best match for your operators. Take a look and see what you think.

Alternate view of the gear hole
Alternate view of the gear hole
A quick learner from Feeland WA says:
August 29, 2023
Bob, thank you so much for all the information. I have learned that there is a lot more to this than I thought originally (LOL). Unfortunately, we are looking for the "clay" color, not white. We will stick with my husband's latest fix *adjusting the set screw to keep the handle on" and then reevaluate the whole window operator system or replace the window (yikes). Again, thank you for all your enlightening knowledge.
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Bob from SWISCO responded:
August 30, 2023

That's completely understandable. Just let us know if there is anything else that we can do to assist you. 
Crank Handle, 11/32"
Crank Handle, 11/32"
39-114L
$4.42
Fold-down Crank Handle, 5/16" Hex
Fold-down Crank Handle, 5/16" Hex
39-224
$24.35
SWISCO Window Operator Crank Handles
SWISCO Window Operator Crank Handles
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