I guess this heavy duty base will be better:
http://www.panavise.com/nf/vises/vises_hduty.html
Holds weights up to 100 lbs
90 degree tilt
360 degree turn
360 degree rotation
http://www.panavise.com/nf/vises/vises_hduty.html
Holds weights up to 100 lbs
90 degree tilt
360 degree turn
360 degree rotation