Milwaukee M18 Random Orbit Sander 2648-20 vs Ryobi ONE+ 18V 5 in. Random Orbit Sander

The Milwaukee 2648-20 is the stronger tool: a 7,000-12,000 OPM variable-speed dial, a 3/32 in orbit and a dust canister with filter make it a real woodworking sander. The Ryobi PCL406B is a simpler single-speed 10,000 OPM unit with 40% less vibration than its predecessor, and it runs on the huge ONE+ battery platform. Owners rate the Ryobi higher, but on far fewer ratings, so treat that gap as noise. Buy the Milwaukee if you sand often and want speed control; buy the Ryobi if you already own ONE+ batteries and sand occasionally.

• Choose the Milwaukee 2648-20 if you want variable speed, a filtered dust canister and corded-class material removal from an 18V battery.
• Choose the Ryobi PCL406B if you are already on the ONE+ battery system and want a light, low-vibration finish sander for occasional work.