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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.
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Arrives Saturday, Dec 20
Order within 6 hours and 48 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: Saturday, Dec 20

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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Top Amazon Reviews


  • 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

  • Perfect !
Style: Original Kit
Love it !! I've always wanted one and finally bought one for a project on my truck. Lots of power and easy to use. I especially like all the attachments that are available, I purchased several. A very unique tool for unique projects. VERY high quality too.
Reviewed in the United States on April 1, 2025 by Eric Douglass

  • Great little tool
Style: Original Kit
This is a powerful little tool with multiple speed selections. It is not variable speed, you have to select the rpm’s you want. This was my first time using the Dremel tool and I needed to cut off a large bolt holding a pulley on a lawn tractor. It took a metal cutting blade and the highest speed but it got the job done. There are many different heads available for the tool but not included in this package I’m looking forward to seeing just how versatile this tool can be. The battery is rechargeable so there is no cord to get in the way and it seems to last a good while. Use all safety precautions because it would be very easy to accidentally injure yourself if not careful. My hands are small so I was more comfortable using both hands on the tool for cutting metal. I think it is a good choice. ... show more
Reviewed in the United States on September 4, 2024 by LP in NC

  • Excellent equipment battery makes it so portable, but battery is hard to remove for charging
Style: Original Kit
Everything I expected from a Dremel tool, portability, battery charger gets it usable in only a couple of hours, long enough battery life for several hours, speed adjustability, lightweight, works great, fits same tools my corded Dremel uses. Unfortunately, the battery is impossible for me to remove from the tool. I honestly have to take it to a very strong neighbor, who can barely remove it. ... show more
Reviewed in the United States on April 18, 2025 by td

  • My husband loves this tool!
Style: Original Kit
A cordless Dremel can be used anywhere, any time and in any position for a multitude of tasks. My husband tells me how much he loves it every time he uses it. Highly recommended.
Reviewed in the United States on April 2, 2025 by 4myRVpantry

  • Good price
Style: Original Kit
Worked great for project (drywall and wood)
Reviewed in the United States on March 20, 2025 by jr

  • Doggie pedicures
Style: Original Kit
Working in the Veterinary field, this Dremel is a must for pedicure & file! Really appreciate the adjustable speeds. Low & slow for puppies & small dogs, while those big pups require a higher intensity/speed. Good quality overall & good shelf life as long as you keep up with getting the nail dust out. Do use caution (esp w/ long coat dogs) & no constant contact as the heat level increases & could be uncomfortable for your puppers. ... show more
Reviewed in the United States on March 23, 2025 by Dhdoodle

  • Strong
Style: Original Kit
This is a great tool. A little heavy for it size, but understandable due to the battery that is removable so you can charge it. But I would rather have this than the ones that you just plug in to charge. This one is great for its ability to change speeds. I think this is a great tool for its price.
Reviewed in the United States on November 7, 2024 by Craig Langkau

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