In a message dated 98-11-16 15:42:10 EST, Daly wrote:
<< If the second one is that for the bristle (is that what is meant
by "spring groove"?), what is the one that gets cut on the tablesaw?
Me too, but your message reminded me that some jacks have a groove for
locating the plectrum mortise. But that's more of a knife line than a groove,
and he did mention 45 degrees, so....I too await David's clarification.