Delta has stumbled a lot in recent years, but I must say that their mobile bases are simply the best out there.  I bought a 250 lb Jet JSG-6DC belt/disc sander, built a wooden cabinet for it to sit on, and mounted the cabinet on this base. It is a snap to assemble, rolls smoothly, steers well with its two fixed casters and one swiveling one, the single foot lever is easy to actuate, it is rock-solid in the down position, and it is easy to level. Well-designed, well-made, and reasonably priced in today's market. Nice job, Delta.