The Smart Vac is a new and revolutionary approach to vacuum chuck workholding. Not only does it NOT require an expensive and cumbersome vacuum pump, but it also uses interchangeable top plates to customize your workholding requirements. The Base provides up to 26" Hg of vacuum power... the same as a traditional vacuum pump. Best of all, it requires only 0.8 CFM of shop air at 80 psi.  Click here for more info.....