Originally Posted by
Jim Becker
Why do you want the Rotex? Do you have heavy stock removal requirements that will justify the slightly more awkward balance that the Rotex sanders bring along with their versatility? If you are going to primarily be doing normal finish sanding, opt for the non-Rotex tool. Rotex tends to be a "two hand" sander because of its robustness and balance...great when you are digging into something, but not great if you are sanding something that you have use the tool in one hand and hold the workpiece with the other. I use my Rotex about 2-3% of the time. All the rest of my sanding gives the nod to the 150/3. (My Rotex is also 150mm sized)
The top 125mm (5") sander can also take a larger 150mm pad; but the reverse is not true, in case that helps.