Frequently Asked Questions

Which is better for pros: the Dremel 8250 or the Milwaukee M12 Brushless?

For most pros, I’d say the Dremel 8250 is the better buy. It hits a higher 30,000 RPM max speed versus the Milwaukee’s 27,500 RPM, and it weighs just 13.76 ounces compared to the Milwaukee’s 3.7 pounds. That speed advantage and lighter weight make a real difference during long detail work. The Milwaukee only wins if you’re already deep in the M12 battery ecosystem and want to share batteries across tools.

Is the Dremel 8250 worth the extra money over the Milwaukee M12?

Actually, it’s the other way around — the Dremel 8250 is typically priced lower than the Milwaukee M12 kit. So you’re getting more max RPM, a lighter tool, and Dremel’s massive accessory compatibility for less money. The Milwaukee does bring an LED light and REDLINK Intelligence, but those don’t justify the higher cost unless you need M12 battery compatibility. I’d take the Dremel’s performance-per-dollar every time.

Which rotary tool has better battery life?

The Dremel 8250 wins this one hands down. It comes with a 3.0Ah battery that delivers 2X more battery life than the older Dremel 8220, and the charger gets you back to full in just 95 minutes. The Milwaukee M12 kit doesn’t specify its battery capacity in the specs, but it’s heavier at 3.7 pounds, suggesting a larger pack that adds weight. For extended runtime without fatigue, the Dremel is the clear choice.

Can I use my existing Dremel accessories with the Milwaukee M12?

No, you can’t — and that’s a big deal if you already own Dremel accessories. The Dremel 8250 is compatible with every Dremel rotary accessory and attachment, so your existing collection keeps working. The Milwaukee M12 uses a different collet design, so you’d need to buy all new bits and accessories. If you’ve invested in Dremel accessories over the years, that alone makes the Dremel 8250 the smarter pick.

Which rotary tool is better for working in tight, dark spaces?

The Milwaukee M12 takes this one thanks to its built-in LED light. That’s a genuine advantage when you’re working under a sink, inside a cabinet, or in a dark attic. The Dremel 8250 has no integrated light, so you’d need to bring a separate work light. That said, if you mostly work in well-lit workshops, the Dremel’s higher 30,000 RPM speed and lighter weight matter more than the Milwaukee’s LED.

Is the Milwaukee M12 Brushless more durable than the Dremel 8250?

Both use brushless motors, which is the key durability feature — no brushes to wear out over time. The Milwaukee touts REDLINK Intelligence for longer life and reliability, while the Dremel says its advanced brushless motor extends tool life. The Dremel also comes with a limited lifetime warranty from the manufacturer, which gives me more confidence in its longevity. I’d call it a tie on durability, with the Dremel’s warranty tipping the scales slightly.