
Festool ROTEX RO 90 DX
Score: 92/100Milwaukee M12 3-Inch Random Orbital Sander
Score: 88/100Rankings

The Festool RO 90 DX is a compact, professional-grade multi-mode sander that combines rotary, orbital, and delta sanding in one tool. It excels in versatility and dust extraction but is limited by its corded design and higher weight compared to entry-level models. Ideal for professionals needing precision in tight spaces and aggressive material removal.
The Milwaukee Tool M12 3-Inch Random Orbital Sander is a compact, brushless 12V tool designed for fine finishing tasks, featuring a 3/32-inch orbit to minimize swirl marks. It offers variable speed control and includes dual vacuum ports for efficient dust extraction, making it ideal for automotive and woodworking applications. However, it is less suited for heavy stock removal or ultra-detailed work on tiny spots.
| Attribute | ![]() | Milwaukee M12 3-Inch Random Orbital Sander |
|---|---|---|
400 Wbest | — | |
7,000 RPM | 10,000 RPMbest | |
3.18 mmbest | 2.5 mm | |
88.9 mm | 152.4 mmbest | |
| ↓ lower better | 1.4 kgbest | 1.63 kg |
3 yearsbest | 3 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | Milwaukee M12 3-Inch Random Orbital Sander |
|---|---|---|
Power & Performance(5) | ||
Power Source | Corded | Cordless |
Motor Power (W) | 400 W | Brushless W |
No-Load Speed (RPM) | 7000 RPM | 10000 RPM |
Orbit Diameter (mm) | 3.18 mm | 2.5 mm |
Sanding Pad Diameter (mm) | 88.9 mm | 152.4 mm |
Ergonomics & Design(3) | ||
Weight (kg) | 1.4 kg | 1.63 kg |
Switch Type | Dial | Trigger |
Handle Type | Ergonomic Handheld | Ergonomic |
Features & Accessories(2) | ||
Dust Collection System | Dust Extraction | Integrated |
Pad Attachment Type | Hook-and-Loop | Hook and Loop |


Professional reviewers describe it as an engineering marvel that seamlessly switches between modes for aggressive material removal and brilliant polishing finishes.
Product pages imply praise for eliminating hand sanding in tight spots and time savings, though direct consumer reviews are scarce.
Professional reviewers and editors highlight the Milwaukee 2584-20 as a superior tool for achieving paint-ready finishes on automotive clear coats and primers due to its fine 3/32-inch throw. Experts praise its ergonomic design, brushless motor efficiency, and vacuum compatibility.
“all-day comfort”
“too fine for rough stock removal”

Everyday users commonly praise the tool for its smooth operation, lightweight design, and excellent dust extraction capabilities, often reporting all-day comfort during use. However, complaints frequently focus on pad durability under high speeds.