Crank handle dimensions
A handy person from Grand Rapids, MI says:
date: 06-03-09
Dear Sirs;
The measurement of the spline on our operator is 5/16" or 10mm across. Is this going to accomodate your 3/8" rear bore or am I looking at the wrong item. There are 12 teeth on the spline. The other dimensions are close enough
Paul from SWISCO.com responded:
date: 06-04-09
If the spline of your window operator measures 5/16" it will not fit this crank handle. The only 5/16" crank handle available is the
39-218 t-handle, but it is for a hex shaped spline. Take a look at the included picture in this post for a much more detailed image of the 39-104 gear hole.