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⚙️ Power, Precision, and Portability — The Ultimate DIY Gamechanger!
The Dremel 8240-5 is a sleek, cordless rotary tool powered by a 12V/2AH lithium-ion battery offering up to 2 hours of runtime. With variable speeds from 5,000 to 35,000 RPM and an ergonomic 360-degree grip, it ensures precision and comfort for diverse tasks like cutting, sanding, and polishing. Its patented EZ Twist Nose Cap allows quick accessory changes without tools, while the included carry bag enhances portability. Ideal for professionals and hobbyists seeking cordless convenience without sacrificing power.


























| Asin | B09SKFVSMZ |
| Battery Average Life | 2 hours |
| Best Sellers Rank | #5,442 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #9 in Power Rotary Tools |
| Brand Name | Dremel |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,361) 4.5 out of 5 stars |
| Included Components | 8240, B815-01 2.0Ah battery, GAL12V-20 charger and 5 accessories |
| Item Dimensions | 9.98 x 2 x 2.38 inches |
| Item Highlight | Comfort Grip, Variable Speed, Includes 2AH Battery Pack, Charger, 5 Rotary Tool Accessories, Wrench & Carry Bag |
| Item Type Name | Rotary Tools |
| Item Weight | 1.5 pounds |
| Manufacturer | Dremel |
| Manufacturer Part Number | 8240-5 |
| Manufacturer Warranty Description | Limited 2 Years |
| Maximum Rotational Speed | 35000 rpm |
| Minimum Speed | 5000 rpm |
| Model Number | 8240-5 |
| Number Of Batteries | 1 Lithium Ion batteries required. (included) |
| Number Of Items | 1 |
| Other Special Features Of The Product | Compact, Cordless, Variable Speed |
| Power Source | Battery Powered |
| Recommended Uses For Product | Deburring, Grinding, Polishing, Sanding |
| Style Name | Industrial |
| Unit Count | 1 Count |
| Upc | 080596057336 |
| Voltage | 12 volts |
User
Why did it take me so long??
First time purchasing a CORDLESS Dremel - have 3 older corded. I have to say this was a smart choice. So much power! I’m taking my time working up to full throttle 😅 and the battery is still more than half after three separate uses with just one charge! Extremely versatile (slices through pvc lattice like butter). Great quality and weight for short or long work sessions. Noise is minimal and will vary somewhat in relation to power level and duration of use. The only thing I could ask for is a slightly better body. I have big hands (6’ woman) and it is a bit thick around the middle- not unreasonably so - just asking for a little better ergonomics when holding, like a slightly deeper pinch nearer the head for when a detail grip is desired ( I get that there has to be room for the battery to insert and yes, I own the grip attachment - not a favorite of mine). Otherwise, it is simply everything one would expect from the Dremel brand - including an excellent price. By the way, the original Dremel in my toolbox is at least 15 years old and still performs admirably within it’s abilities. Upgrading to cordless, though? Wow. Awesome! This was an actual purchase and I was not paid for the review.
User
Dremel 8240
This drill brand it's good for making no heavy work small jobs works very well to making details on wood or soft metalsThe battery doesn't heat up and lasts a good while, provided it isn't subjected to heavy-duty work; I do recommend it.
User
Picked during Prime Deals and have no regret.
IMPORTANT! If your tool is flashing green when it is turned on, set it 10 to 15k and try again. Toggle on and if it still flashes try again.Now to the review. This is a great tool. It's got plenty of power and can SAND through a board. Not just cut. With a SANDING DRUM you can go through a board. It doesn't bog easily above 10krpm. It is great for cutting bolts, cutting sheet metal, sanding metal and wood, rough and fine shaping in wood. Fine shaping in aluminum, polishing steel, rough axe or lawn blade sharpening, engraving, and much more I haven't done yet. The battery life is good, but it leaves some to be desired. It can be gripped like a golf club for grinding, and shaping, or like a pencil for fine and detailed work. The battery charges in 30 to 40 minutes. It is quite heavy, but not enough to stop most detailed work. I can't say much about durability, as I've only had it for a week, but I've got it covered on sawdust, metal dust and splashed with water lightly. This is a brushed tool, but there is not a way to change brushes, so I guess you replace it. Fine with me for 70$, but might be a deal breaker for some to replace every 150 hours. It is a great starter dremel though. You will have to buy a lot more accessories to fuel your rotary addiction, but at this price it's pretty easy to. The carrying case is a huge bonus. It fits my 110 piece accessory kit with the charger, tool and battery. I overall, a great buy.
User
Excellent product
Powerful product works excellent
User
Highly recommend
Works great and as expected! Battery lasts surprisingly long. Carrying case is a great bonus! Highly recommend!
User
Must have tool
I have several Dremels but this is so handy to use. Love the freedom without a cord to get in your way.
User
Beast!
Bought this to trim my dogs nails after purchasing other trimmers I decided to try this Dremel and it is the best! Gets the job done quick with less hassle. Not sure but my guess would be this is what the professionals use. Don’t waste your time with the other nail trimmers. I wish I had purchased this from the start.
User
Surprisingly quiet, greedy corporate leadership modifying the battery housing
This 8240 is replacing my eight year old 8220 which has hard use and time for a new upgrade. The 8240 is just as strong as the 8220 but runs significantly quieter, awesome upgrade. The only thing which is bull crap is the battery from the 8220 will not fit with out a modification. It doesn’t take away from the being superior product it just shows the greed of the company leader ship.
User
Dremel always amazing
Great tool to use. A bit bulky but 12v supply with 35000rpm still available its worth it. However keep in mind that Amazon US supplies at 110V so make sure when ordering. I am still looking for a replacement charger to get the battery charged it is so upsetting......
User
110V يجب شراء محول منفصل
ممتاز جدا جودة عاليه العيب الوحيد الشاحن 110V
User
It's a Dremel rotary tool -- does what it is supposed to do
This is my second Dremel, the first being a hundred years old :-} and corded. This one has WAY more power. The new EZ-Lock cutting wheels and mandrels are superior to the old mandrel mounted ones -- cut maybe five times faster. Really. This battery-operated tool is significantly bigger than my old corded one, so is a little more awkward to use, but I can get used to that. LOVE the power, LOVE not having a cord. The nose piece just below the collet unscrews and becomes a collet wrench -- brilliant! No separate wrench needed to change bits (but you still need one to futz with mandrels). Easier to take with me than the corded one--no extension cord. Comes in a nice (but bulky) fabric case with a few accessories No flex shaft, but I have one from my older Dremel tool. I use a Dremel tool on almost every project -- to cut, to sand, to polish. I have the carving burrs and use those often in woodworking. I bought this tool so that I could have two tools, each with a different bit, to save swapping bits in and out, not thinking that it would replace my old corded Dremel, but it certainly has. IMO the 8250 or 8260 are over-priced. The 8240 is not brushless, but I'm not worried about that. And who really needs to control a Dremel tool with a phone? Like, come on!The short story: BUY THIS TOOL.
User
Excelente desempeño de sus funciones
Excelente desempeño, es justo lo que ofrece la marca y lo recomiendo.
User
A good buy.
Very solid and works as advertised. A nice tool that suits my needs.
Trustpilot
1 week ago
4 days ago