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Dremel

Dremel 8240-5 12V Cordless Rotary Tool Kit with Variable Speed and Comfort Grip - Includes 2AH Battery Pack, Charger, 5 Accessories, Wrench, and Tool Fabric Carry Bag

  • Based on 1,882 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Mar 15
Order within 23 hours and 19 minutes
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Style: Original Kit


Features

  • COMPACT, PORTABLE, & POWERFUL: 12 Volt / 2 AH Lithium-Ion battery provides maximum performance, high power, and runtime at all speeds (5,000-35,000 RPM).
  • INNOVATIVE TOOL DESIGN: Sleek & ergonomic design with 360-degree grip zone maximizes comfort and control allowing continuous performance for extended working sessions.
  • VERSATILITY: Able to perform the widest range of applications, including but not limited to cutting, sanding & grinding / sharpening. Fully compatible with all Dremel Accessories & Attachments.
  • QUICK ACCESSORY CHANGES: Patented EZ Twist Nose Cap makes accessory changes fast and easy without the need of a wrench.
  • MAXIMUM RUN TIME: Advanced technology for optimum battery life and power.
  • LED BATTERY LIFE INDICATOR: Indicates remaining battery life before a recharge is needed.
  • NOISE CONTROL: Ventilation openings for smooth, cool and quiet operation
  • KIT CONTENTS: Dremel 12V 8240 Cordless Rotary Tool and Rotary Accessories (x5).

Description

The Dremel 8240 offers high performance and versatility, packaged in a sleek new tool design. As the new flagship 12-volt cordless rotary tool, the 8240 features an optimized battery platform allowing DIYers to comfortably tackle a wide range of home improvement projects without the distraction of a cord. The powerful 12-Volt / 2 AH Lithium-Ion battery provides maximum performance for extended working sessions. The new 8240 provides cord-like power in cordless form giving you the confidence to tackle the toughest of jobs.

Brand: Dremel


Voltage: 12 Volts


Power Source: Battery Powered


Recommended Uses For Product: Grinding Cutting, Sanding


Color: Black


Brand: ‎Dremel


Voltage: ‎12 Volts


Power Source: ‎Battery Powered


Recommended Uses For Product: ‎Grinding Cutting, Sanding


Color: ‎Black


Special Feature: ‎Cordless


Included Components: ‎Cordless Rotary Tool, (6) Rotary Tool Accessories, Accessory Storage Case, 12V 2.0Ah Battery Pack, GAL12V-20 Battery Charger, User Manual Fabric Tool Storage Case, Instruction Manual


Item Weight: ‎1.5 Pounds


Maximum Rotational Speed: ‎35000 RPM


Number of Batteries: ‎1 Lithium Ion batteries required. (included)


Style: ‎Original Kit


Item dimensions L x W x H: ‎9.98 x 2 x 2.38 inches


Minimum Speed: ‎5000 RPM


UPC: ‎080596057336


Manufacturer: ‎Dremel


Part Number: ‎8240-5


Item Weight: ‎1.46 pounds


Product Dimensions: ‎9.98 x 2 x 2.38 inches


Item model number: ‎8240


Batteries: ‎1 Lithium Ion batteries required. (included)


Size: ‎No Size


Finish: ‎Brushed


Material: ‎Plastic


Pattern: ‎Solid


Shape: ‎Rectangular


Item Package Quantity: ‎1


Special Features: ‎Cordless


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Lithium Ion


Warranty Description: ‎Limited 2 Year Manufacturer


Date First Available: May 23, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Mar 15

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Picked during Prime Deals and have no regret.
Style: Original Kit
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. ... show more
Reviewed in the United States on October 17, 2025 by Joseph K.
    • A Wireless Dremel Version, Priceless!
Style: Original Kit
This is a quality tool that's easy to use, has a long battery life and because it's 'wireless' is very functional outdoors when I work on my vehicle away from electrical power sources. No cord to get in the way either. Thumbs Up!
Reviewed in the United States on June 15, 2025 by AMA
    • Powerful Cordless Dremel Perfect For Chain Saw Sharpening
Style: Original Kit
Excellent Cordless Dremel tool that I purchased for sharpening my chain saws using a Dremel optional kit yet of course works with most all the other dremel accessories, blades, disks etc. Battery charges easily in its own charger and enables the tool to function at 35K easily. While more costly than a corded model the portability more than makes up for this. I have not expeienced any overheating. While the tool is a bit larger than a corded model I would order it again if needed. ... show more
Reviewed in the United States on May 29, 2025 by Peakperformance Ken
    • Great tool, but some ghosts remain
Style: Original Kit
It's mostly a great tool, except for one long-standing issue: When you're doing intensive, detailed work, you're all but guaranteed to press the collet lock button, which makes a horrible grating sound and may stop all tool motion leading you to think that you've just broken it! I just can't believe that this is still an issue after all these years. I can see how it might be difficult to relocate it, so put a cover over it or make it a slide switch or something else that doesn't engage merely by holding the tool! ... show more
Reviewed in the United States on May 26, 2025 by Adam T
    • Great for indoors or outdoors!
Style: Original Kit
The Dremel 8240 is a cordless, battery operated tool, that can be used indoors and outdoors equally well. It is powered by a 12v Lithium-Ion battery with home charger, extra batteries can be purchased for more outdoor time. The tool has variable speed from 5,000 to 35,000 rpm controlled by a small rotary dial. Build quality is very good ant these tools will stand up to hard wear. Very easy to use, the size is not much longer that the ac mains version. The design looks very good with its two tone light and dark grey body. For its size it is very light weight and it works great. I love it as I can usit for little jobs on my car as well as the workbench. I would advise owners to invest in a Dremel 3-jaw chuck wich makes using small drills a lot easier. Great tool highly recommended. ... show more
Reviewed in the United States on April 20, 2025 by c00lbrit
    • Good tool
Style: Original Kit
Nice tool
Reviewed in the United States on December 25, 2025 by Matt murphy
    • Great product
Style: Original Kit
Dremel is my favorite. This is a work horse. Made well. Gets every job done
Reviewed in the United States on August 21, 2025 by Rick J
    • Good so far
Style: Original Kit
Needed to replace my Bosch which is identical. Disappointed in the short life of previous tool but figured this purchase gives me replacement tool and battery with charger compatible with my other 12v tools. So far so good with limited use.
Reviewed in the United States on December 21, 2025 by Jules

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