What size spline does 39-375 have

A quick learner from CA says:
November 5, 2018
What size spline does this handle have if I want to add an extension or universal joint
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Dave Sr. from SWISCO responded:
November 14, 2018

The 39-375 has an 11/32" diameter spline. It can be used with the 39-157 or 39-337 handle extensions.
Encore Truth Folding Handle with Cover
Encore Truth Folding Handle with Cover
39-376
$11.97
2" Crank Handle Extension, 11/32"
2" Crank Handle Extension, 11/32"
39-337
$25.25
Truth Hardware Metal Bracket
Truth Hardware Metal Bracket
39-157B
$6.40
4" Crank Extension, 11/32"
4" Crank Extension, 11/32"
39-157
$25.59
Encore Truth Folding Handle with Cover
Encore Truth Folding Handle with Cover
39-375
$11.97
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