Nothing’s quite as sweet as “hand-polished” look on your car , but when it comes to uber-shine, pros reach for a power polisher. Together with a quality polishing pad, the combination can make for a show stopper — and we’ve seen more than one Porter Cable 7428 in show car toolboxes.
The 7428 always seems to be the polisher you see in pad manufacturers’ advertising, too. It’s no wonder; it has a 1000 to 3000 rpm pad speed adjustment and a powerful 10 amp motor with a variable speed trigger.
The 7″ disc mounts to the unit via spindle lock, but the pad secures with a hook and loop system making for easy change-outs if you’re applying a multi-stage system.
Caution: You should know is that a polisher is different than a grinder. A grinder operates at a much higher rate of speed. We can’t stress that enough. If you try to use a grinder with a polish pad you might wind up taking your paint off instead of applying that high gloss shine you were looking for. We can’t stress this enough, seriously.
Another note: Why not pick yourself up a cheap-ass Harbor Freight polisher to use with your knot-cup brush for knocking off welding slag and rust? There’s no reason to spin a brush at 10k RPM — 3k’ll clean that rust off just fine.
Street pricing starts at $225.