The powRgrip collet system from Rego-Fix uses toolholders and collets that reportedly generate high clamping forces equal or higher than shrink-fit toolholders. It works off 110-V AC and fits on a workbench. The system relies on interference between the holder and collet to generate the clamping force and uses holder-material mechanical properties to generate gripping force with run-out below 0.0001 in.
rego-fix.com