i need a deep groover to run on the shaper. so, i went to my trusty local saw blade place and asked them to make me an 8" blade with a 1 1/4" bore - they've done speciality blades before (buying stock blades and boring the center). they said, "nope, won't do it, too dangerous." the place is Saw and Specialty in Romulus, MI.
i think this is a pretty common request. i need a deep slot cutter, so such a blade feels perfect. the adjustable goovers i own for the shaper don't go down to 3mm, and that's what i need, and i need fairly deep reach. i fully understand that i'll have to ramp the spindle speed down to keep the cut safe.
my question is - what tooling do people run for deep, kerf-width grooves on the shaper, and where can i get such tooling? i was surprised by their answer, and cannot imagine it's an unusual approach.
-- dz