The PortaMate PM7050 MEGAVISE is a portable clamping station that looks like it may be a contender to the Rockwell Jawhorse. With a clamping force of 1500lbs, a 34.5″ capacity, and three sets of interchangeable clutch plates, the MegaVise looks to be higly capable.
The MegaVise’s jaws are set to the approximate workpiece size by sliding the fixed jaw along its rail and then securing it with a snap-pin stop. The snap-pin design looks to be quite sturdy, and should not wear down with use. Final clamping is done by closing the screw vise in a typical manner.
Included with the MegaVise are 2 log jaw clutch plates, 2 pipe grooved clutch plates, and 2 single groove clutch plates. The MegaVise collapses into a (relatively) compact and storable size.
PortaMate’s MegaVise is priced at about $170.