Let me second Elaine’s recommendation of Lee Marshall’s KnewConcept
saw. It’s the only saw that was designed from the ground up to be a
powered jeweler’s saw, not a tweaked woodworker’s saw. I’ve used
some very nice jigsaws with jeweler’s saw blades in them. They’re not
even close. Lee’s saw has two major advantages:
(A) It takes much longer strokes than jigsaws do, so it uses the
entire blade length, instead of just just jackrabbiting up and down
and only using the middle inch or two of the blade.
(B) If fails safe. If you break a blade, the entire clamp mechanism
stops moving, so you don’t have any risk of the broken bits jabbing
into your fingers several times in the second or two before you can
get them out of the way.
Take a look at his store,
The only drawback to Lee’s saw is the price: $1900 USD.
Usual disclaimers apply: no interest other than seeing a friend