K&K Window T crank handle - Butterfly handle

A home owner from Kenosha says:
March 25, 2021
I have measured the spline as 7/16 inch. The entry gard arm has "Truth" stamped into the metal. Is product code 39-195 the correct item to convert a crank handle to "T" handle? Thank you for your assistance.
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Bob from SWISCO responded:
March 29, 2021

If you're absolutely sure the gear bore is 7/16" (rather than, say, 11/32"), then yes, the 39-195 Tee Handle should work for you. 
A home owner from Kenosha says:
April 17, 2021
I used a drill bit shank to check the measurement of the gear bore. You are correct , it is 11/32.
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