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Discussion Starter · #1 ·
I have an older Reliant shaper that has 3 cutter arbors, 1/2, 3/4, & 1" plus one 1/2" collet.
Does anyone know what the spec is on the spindle taper for these machines? From what I read this was used on some Jet machines and also Accura.
Kind of looks like a small version of the NMBT tapers used on machine tools but I can't find specs for sizes smaller than a 30 taper.

What I would like to find out is if there were ever any 1/4 & 3/8 collets made for this spindle taper.
It would also be nice to find an 1-1/4" cutter arbor since there seems to be a much wider selection of cutters available in 1-1/4" hole size.

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Discussion Starter · #3 ·
I don't intend to use very small cutters. It's just that I have some of the form cutters I have are with 1/4" shanks. I've had good result with 1-1/4 dia cutters.
As far as the 1-1/4" arbor, I don't intend to use particularly large cutters either. I have one or two that are around 4" dia with 1" hole.
If I don't go over that, a 1-1/4" hole wouldn't cause any issues.

I suppose I could use a straight collet reducer to go from 1/2" to 3/8 or 1/4"
 
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