The 8240 had no noticeable power difference between it and my Dremel 4000 as I adjusted the RPM up and down the scale and in use in my project. The 8240 actually had the feeling of being lighter and easier to move-around/reposition than the corded Dremel 4000 I use, this from the drag of the cord itself. My project with the Dremel 8240 for review was cleaning and repainting a simple "In Ground" Garden Hose Stand which had rusted, which I used various Dremel Sanding Flap Wheels and Detail Abrasive Brush to remove rust to metal. I have an added reason for liking this Cordless version outside of the standard product measures, I now have limited use of my right arm after a fall and elbow surgery, which is where I want to start my review. ![]() First time I have used a Dremel Cordless Rotary Tool in my 30 years of owning and using varied levels of corded Dremel's. I think I would recommend going up one or two levels to get a great rotary tool, like the Dremel 8250. Overall I do find this a great upgrade from my old corded Dremel 4000. The charger does work quite well, charging the battery quickly. A higher amp hour battery would help this along. The battery did not last all that long while cutting through aluminum. Once I had the rough size, I used the included sanding drums to finalize the shape. After some time, I used one of the EZ arbors and cutting/grinding wheels to shape the aluminum. Cutting the aluminum was a bit slow going since I was using the included cutting wheel. I used the 8240 to cut out the repair piece from aluminum. I designed in CAD (cardboard aided design) a fix for this problem. Since it is make from pot metal the tabs break quite easily. The tail light lenses are retained by a built in tab on the base of the light assembly. Anyway, I utilized this tool to make a repair part for my aging 65 MGB. ![]() I kind of consider this kit as something that was thrown in just to give the new user something to upgrade right away. ![]() The cutting wheels are of the old design that use (an included) arbor with the small screw that retains the wheels. The added tool tray is rather lacking to tell the truth. I will start by saying that the 2ah battery is not the best of batteries, and I would really have liked to get a second battery included in the kit. I found the 8240 a very good rotary tool.
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