Autoblog and Yahoo may earn commission from links in this article.A good buffer polisher can take DIY car detailing well beyond a basic wash and wax. Whether you're trying to bring back shine, clean up light imperfections, apply polish more evenly, or keep a weekend car looking its best, the right tool makes the job easier and more consistent. It's a solid pickup for gearheads, home detailers, and anyone who likes keeping their car, truck, SUV, motorcycle, or boat looking cleaner than a quick hand polish can usually manage.For a limited time, the Craftsman V20 Cordless Buffer Polisher is on sale at Amazon for $119, $60 off its regular $179 price. That's a big discount on a name-brand cordless detailing tool, especially if you're already invested in Craftsman's V20 battery system. The battery and charger are sold separately, but for anyone who already has V20 batteries in the garage, this can be a simple way to add a cordless polisher without buying into another platform.Craftsman V20 Cordless Buffer Polisher, $119 (was $179) at AmazonCraftsman V20 Cordless Buffer Polisher, $119 (was $179) at AmazonCheck PriceProsPart of the Craftsman V20 system, which is convenient for anyone who already owns compatible batteriesBrushless motor is designed for better runtime and consistent performance under loadIncludes cutting, correcting, and finishing pads, plus a side handleConsBattery and charger are sold separatelyCordless runtime will depend on the V20 battery size being usedBeginners still need to use the right pads, polish, pressure, and technique to avoid poor resultsAdvertisementAdvertisementThis is a 5-inch dual-action polisher with a 15-millimeter throw, which helps reduce heat buildup and lower the risk of leaving swirl marks behind. The brushless motor is designed to maintain constant speed under load, so the tool can keep working consistently as you move across panels. It also has a variable-speed trigger and dial with nine speed settings and up to 6,000 no-load orbits per minute, giving you more control for cutting, correcting, polishing, and finishing.Related: DeWalt's 'Excellent' Buffer Polisher Is Now 48% Off at Amazon During Prime DayThe in-line battery position is designed to help prevent scratching and marring the work surface, which matters when you're working close to painted panels. Craftsman also includes a cutting pad, correcting pad, finishing pad, and side handle, so you have the basic accessories needed to get started once you have a compatible battery.Deals We're LovingCraftsman V20 Cordless Hammer Drill, $99 (was $139) at AmazonCraftsman V20 Cordless 3/8-Inch Ratchet, $89 (was $139) at AmazonCraftsman 20-Piece Ratcheting Wrench Set, $23 (was $32) at AmazonAdvertisementAdvertisementDiscounts this big on popular tool brands never tend to stick around for long, so head over to Amazon's site today and get your hands on the Craftsman V20 Cordless Buffer Polisher for just $119 while it's still on sale for 34% off.This story was originally published by Autoblog on Aug 5, 2026, where it first appeared in the Deals section. Add Autoblog as a Preferred Source by clicking here.