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Dremel 4000-6/50 120-Volt Variable-Speed Rotary Kit

by Dremel
624 customer reviews
| 94 answered questions

List Price: $269.58
Price: $131.99 & FREE Shipping. Details
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  • Speeds from 5,000 to 35,000 RPM
  • Compatible with all Dremel accessories and attachments
  • Includes 50 accessories
  • 360-degree grip zone for control in any position
  • Deluxe carrying case included
See more product details
33 new from $131.99 1 used from $114.82

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Frequently Bought Together

  • Dremel 4000-6/50 120-Volt Variable-Speed Rotary Kit
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  • Dremel 4486 MultiPro Keyless Chuck
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  • Dremel 710-08 All-Purpose Rotary Accessory Kit, 160-Piece
Total price: $166.83
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Special Offers and Product Promotions

Product Description

The 4000 variable speed rotary tool offers the highest performance and most versatility of all Dremel rotary tools. The increased strength of its motor plus electronic feedback circuitry delivers consistent performance at all speeds. The slim ergonomic body provides a 360-degree grip zone for control in any position and the separate on/off switch and variable-speed dial allows convenient speed adjustment and maintains a selected speed. It uses all Dremel accessories.

Product Information

Technical Details
Part Number 4000650
Item Weight5.8 pounds
Product Dimensions15.5 x 10.4 x 3.9 inches
Item model number4000650
Power Sourcecorded-electric
Voltage120 volts
Item Package Quantity1
Included Componentscase
Batteries Included?No
Warranty Description2 year warranty
Technical Specification
  • Product Warranty: For warranty information about this product, please click here [PDF]
  • Link Text [5.13mb PDF]
Additional Information
Best Sellers Rank #1,118 in Home Improvement (See top 100)
Shipping Weight5.8 pounds (View shipping rates and policies)
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First AvailableSeptember 14, 2004
Warranty & Support

Product Warranty: For warranty information about this product, please click here [PDF]

From the Manufacturer

Carving/ Engraving

Whether for carving or engraving soft or hard materials, Dremel offers the right accessory for every application. Use high speed cutters for shaping, hollowing, grooving, slotting and making tapered holes in soft metals, plastics and woods. Tungsten Carbide Cutters are recommended for shaping, smoothing and material removal on hard materials such as stainless steel and cast iron. A variety of engraving cutters suitable for both soft and hard materials are also available to tackle every project.

Carving/ Engraving


Cleaning/ Polishing

Grinding/ Sharpening/ Sanding

Key Features

1.6 amp with Electronic Feedback

Superior performance that auto adjusts power and speed as needed.

EZ Twist

Integrated nose cap wrench allows for fast accessory changes.

Variable Speed

For maximum accessory versatility and precise tool control.

Accessory and Attachment Compatibility

Can be used with all Dremel rotary tool accessories and attachments.

What's in the box? Dremel 4000-6/50


Flex Shaft Attachment, Circle Cutter/Straight Edge Guide, Sanding/Grinding Guide, Multipurpose Cutting Guide, Shield Attachment and Lawn Mower and Garden Tool Sharpening Attachment.


- Carving/Engraving: 107 Engraving Cutter, 191 High Speed Cutter, 194 High Speed Cutter.

- Cutting: 420 Cut-off Wheel (x4), EZ409 EZ Lock 1-½ inch Thin Cut Cut-off Wheel (x2), EZ456 EZ Lock 1-½ inch Cut-off Wheel (x2), EZ476 EZ Lock 1-½ inch Cut-off Wheel (x2), 540 1-¼ inch Cut-off Wheel, 561 Multipurpose Cutting Bit.

- Grinding/Sharpening: 541 Aluminum Oxide Grinding Wheel (x2), 932 Aluminum Oxide Grinding Stone, 8193 Aluminum Oxide Grinding Stone, 84922 Silicon Carbide Grinding Stone.

- Cleaning/Polishing: 405 Nylon Bristle Brush, 428 Carbon Steel Brush, 442 Carbon Steel Brush, 421 Polishing Compound, 414 Felt Polishing Wheel (x3), 429 Felt Polishing Wheel, 423E EZ Lock Cloth Polishing Wheel.

- Sanding: 511E EZ Lock Finishing Abrasive Buffs 180 & 280-grit, 512E EZ Lock Finishing Abrasive Buffs 320-grit, 407 1/2 inch Sanding Drum, 408 1/2 inch 60-grit Sanding Band (x2), 432 1/2 inch 120-grit Sanding Band (x2), 445 1/2 inch 240-grit Sanding Band (x2), 411 3/4 inch 180-grit Sanding Disc (x2), 412 3/4 inch 220-grit Sanding Disc (x2), 413 3/4 inch 240-grit Sanding Disc (x2).

- Miscellaneous: 150 1/8 inch Drill Bit, 401 Screw Mandrel, 402 Mandrel, EZ402 EZ Lock Mandrel, 481 3/32 inch Collet, EZ Twist Nose Cap, Wrench.

Kit Contents

  • Dremel 4000 Rotary Tool
  • 6 Attachments
  • 50 Accessories
  • Hard Carry Case
  • Accessory Case
4200 Series 4000 Series 3000 Series 9100-21
Amps 1.6 1.6 1.2 2.5
Speed Range (RPM) 5,000 - 35,000 5,000 - 35,000 5,000 - 32,000 0 - 23,000
Electronic Feedback Control
Number of Speeds Variable Variable Variable Variable - Foot-operated speed control
Separate On/Off Speed Control
Accessory Change System EZ Change EZ Twist Nose Cap EZ Twist Nose Cap Wrench
Kit Options 4200-4/36, 4200-6/40, 4200-8/64 4000-2/30, 4000-3/34, 4000-4/34, 4000-6/50 3000-1/24, 3000-1/25, 3000-1/31, 3000-2/28 9100-21

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

324 of 346 people found the following review helpful By Matt Service on January 5, 2010
Verified Purchase
I was originally going to buy a rotary tool and all of the accessories separate. But this package deal has everything I wanted. If you want all the accessories, I recommend this package. I added it all up, and it saved me around $75 compared to buying everything separate. Probably even more if I had to pay shipping on some of the accessories.

There are three things I don't exactly like about it though, but they aren't too bad if you know about them ahead of time.

First, the threads to attach the flex shaft, planer, or finger grip are plastic. I have a very strong grip, and am always twisting things very very tight. I twisted a little too hard when attaching the planer and broke some of the threads on the rotary tool itself (which cannot be replaced without replacing the whole tool by the way). So, just be careful and don't over tighten attachments, and you will be fine.

Second, the tool is surprisingly heavy and is pretty big. It makes it hard to do some of the finer projects I was wanting to do because it's weight and size makes it awkward to handle. But I recommend getting the workstation/drill press to hold the tool while you use the flex shaft attachment. You can use the flex shaft without mounting the tool, but it gets in the way and moves around on the bench while working.

Third, the toolbox it all comes in doesn't really hold everything very well. But that is pretty common with power tools these days isn't it? Anyway, just get yourself a bigger compartmental tool box (or large tackle box), and you will be fine. Just don't get the grey plastic "Dremel 9673 Deluxe Window Rotary Tool and Accessory Storage Case". I purchased it, and it is solid plastic (including hinges) and doesn't hold everything that comes in this kit.
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127 of 135 people found the following review helpful By MantaRIde on January 19, 2012
Verified Purchase
After reading and debating and reading and debating, I finally took the leap and purchased the kit. It might be a little early on my review, but so far I have already saved so much money...I have to say don't wait. If you're debating getting one...then you need it.
I provided a picture of project #1 Front door handles (a work in progress.) I have priced comparable handles on-line and in the stores, they cost $800.00 on average. I also priced the Dremel tool kit $131 and change. I WIN. Not only am I already ahead financially, I still have the kit and more projects in the making. PLUS I get to make my wife come out so I can say "see what I did." When she said WOW! She really meant it...Priceless. I know I pay more attention to your reviews then to the product hype. I don't click helped or didn't help, so this is my way of paying forward and saying thanks to all the reviewers. Hope this helps someone.
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412 of 452 people found the following review helpful By Mysterious Mr Wong on July 24, 2011
Verified Purchase
First of all I'd like to say that I have been using Dremel rotary tools for many years. I have enjoyed using this tool and had always found it to be reliable. Then, I bought the Dremel 4000 and the flex shaft, of which I had used the flex shaft many times in the past and always had it connected. The first day the flex shaft snapped, then the Dremel stopped working. I "burned it in" as they say by following the directions and running the Dremel 4000 at full rpms for 5 minutes. Having thought that I MUST have done something wrong, it is Dremel after all, I bought a second 4000 and another flex shaft. I burned the dremel in, and it stopped working as well. I went to the Dremel site, and low and behold NUMEROUS complaints abound on their message board about this very thing. Needless to say I see no point in buying another 4000 as they simply are not what they once were. The first dremel I ever purchased was in 1991 and it was a great tool that lasted through everything that I needed it for without fail. With the 4000 I simply feel cheated and cannot understand why Dremel hasn't addressed these problems in their rotary tool and stopped selling them. It's not like I abuse my tools, I use them for what they are intended to be used for. And even treating the second 4000 with kid gloves it still stopped working. Not once, but twice. I can even see getting a lemon occasionally but having purchased 2, and then reading the problems others are having on Dremels own message boards, I have decided to go with another product. The Dremel 4000 is a waste of money unless they address the problem of these things breaking down repeatedly.
While I love the functionality of the Dremel and all the various attachments that they provide for their customers it simpy isn't a good investment. I hope they meet the challenge of re-engineering this tool. I miss it in my shop.
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82 of 87 people found the following review helpful By Matthew Munyon on October 20, 2010
Verified Purchase
The Dremel 4000 I purchased as part of the 6-50 kit has proven to be an excellent addition to my collection of tools. Some examples of how I have used the Dremel 4000 include: removing a rusty section of exhaust pipe on my wife's car with the flex shaft attachment and a EZ-Lock metal disk, cleaning an aluminum casting with with a wire wheel to repair the compressor for an air-suspension pump, removing plastic with a ball-burr to replace a DC power jack in a laptop with a more readily available one.

I plan on purchasing the 220-01 workstation to use the Dremel as a high rpm drill press for circuit boards. The number and uses of attachments for this tool is pretty amazing.

I also like that the brushes and all of the components can be replaced using hand tools if the need arises.

Lastly, as a machinist for many years, I appreciate the importance of feeds and speeds of a cutting tool in a given material. The website gives easy access to base RPM for a cutting tool in a specific material.

I would strongly suggest purchasing this tool to anyone that is considering it.
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Dremel 4000-6/50 120-Volt Variable-Speed Rotary Kit
This item: Dremel 4000-6/50 120-Volt Variable-Speed Rotary Kit
Price: $131.99
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