Dremel 8250 12V Lithium-Ion Variable Speed Cordless Rotary Tool with Brushless Motor, 5 Rotary Tool Accessories, 3Ah Battery, Charger, and Tool Bag

Users outside the US and Japan need to purchase a separate 220V charger; otherwise, the battery will not charge.

Unfortunately, the product has multiple serious issues that make it unusable. First: While charging, the indicator shows green as if the battery is full, but once installed it turns blue and remains extremely low. The tool shuts off after only a few minutes. I charged it multiple times for long hours with zero improvement — a clear sign the battery is defective or old stock. Second: Even when trying to use the tool, it immediately shuts off when set to a high speed level. It cannot handle even minimal load, which indicates either an internal fault or a battery that cannot provide enough power. This is not a minor defect — the product is simply not usable. The customer loses, while the seller benefits from selling a faulty product at a high price. This is unacceptable, especially from a brand like Dremel. I strongly advise checking the battery and tool condition before buying, because the issue is obvious from the very beginning.

I used the same Craftsman rotary tool for 30+ years and went through several sets of brushes to keep it going. It was a good tool but I wanted an upgrade to latest technology. This new cordless, brushless Dremel is sweet. Immediate stop with off switch (the old tool had to spin down to a stop), the nose cap has an integrated wrench for the collet (no need for that little wrench to change bits), it maintains its speed even with heavy pressure (the old tool would slow down and stall under pressure). And of course the obvious, no cord and no more replacing brushes is a plus. It's bigger and heavier then the corded one, but that is what a battery does to it, its a trade-off. But, I was able to use it for some cutting and sanding without too much fatigue in the fingers, and didn't bother my wrist at all. So will this new one last 30+ years? All I did to the old one is replace brushes three times at $3 each set. Will this battery last 30 years? Will a new battery cost more than $3? Will they still make this model battery? The old one was just a motor and a simple variable speed control circuit. The new one has and electronic speed controller to generate the rotating magnetic field for brushless operation. How is that electronic speed controller going to hold up over time, or will I need to change out a circuit board in the future? But the model 8250 has a limited lifetime warranty so that's good. I'm probably comparing apples to oranges, but it is interesting to think about. Definitely a good upgrade.

部品取り付ける用の軸が添付されていなかったので、付けられないですです。 パワーは、Dremel 4000よりあるみたいです。 予備バッテリーを探しているのですが、どこにも無くて困ってます。

El producto cumplió con lo que necesitaba es de excelente calidad

Was going to get the 8260 but decided on the 8250. Reason is that I don’t really need to use the app but the app still gives you information on bits and I can see how much battery life is left as it shows on the Dremel. It’s my third Dremel and I still have the other two, one which is 31 years old. Love the new 8250. It’s works like a horse and I can get lots done before I need to charge it up. Great for taking camping as I can keep myself occupied while sitting around the fire. I’d Recommend this Dremel or any other Dremel brand.

Product material looks poor and the indicator lights are like cheap products. Better to check for other alternatives before deciding to buy this