Made in the USA, both VFD kits are also suited for smaller garage/machine shops, mills, lathes, and grinders. Adaptable to most applications, the VFD kits can run the motor on 220V single-phase incoming power vs. requiring three-phase power – eliminating the need for a phase converter convenient package, it can go up to 5,000 RPMs in high gear–10-15% higher than the standard milling machine could do. Unlike early VFD kits, these provide full-torque at the lowest RPM.