Just when I thought I made really cools saws I was introduced to Knew Concepts bionic fret saw.  The frame is aircraft grade titanium, adjustable cam blade tensioner, the blade swivels and the frame has no flex!

First try?  The saw is amazing.  the really two key elements are a super stiff frame and the cam blade tensioner.  No more wobbly fret saw blades.  Stiff=accurate cuts.

Now I just need the exotic wood handle from Elkhead Tools

Knew Concepts 5″ Titanium Jeweler’s Fret Saw