Model#: RKWNRK5151K

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Rockwell RK5151K Sonicrafter F80 DuoTech Oscillating Tool

  • Rockwell RK5151K Sonicrafter F80 DuoTech Oscillating Tool
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The new Rockwell Duotech Oscillation Sonicrafter F80 is the first oscillating multi-tool that provides a choice of two oscillating angles: 5 degree and 3.4 degree. Now, users can choose the 5 degree oscillating angle when projects require fast, aggressive cuts for quick results or the 3.4 degree angle for precision and continuous control. The versatile F80 Duotech Oscillation Sonicrafter works harder and faster than any other multi-tool, while enabling the user to choose the oscillating angle that best suits the job at hand. The Sonicrafter F80 can be used at a 5 degree oscillating angle with an end-cut blade to make short work of cross-cutting, ripping or making plunge-cuts in wood and other materials. Versatile F80 trims doorjambs, clips nail heads and cuts PVC or metal plumbing pipes. Switch to the 3.4 degree angle, using a rigid scraper blade, to remove blistered paint, take rust from bare metal for priming or scrape and remove hardened caulk or adhesives. Clamp on a carbide grit semicircular blade to grind old grout from between floor or wall tiles. Cutting speed of the Sonicrafter F80 is five times faster than the basic Sonicrafter RK5121K. The F80 features the industry's leading maximum cutting load of 35 lbs. of force. This means it can be pushed harder than any other multi-tool brand of without stalling the blade.
  • DuoTech Oscillating Technology allows the user to select optimum oscillation angle for best performance given material and application
  • Hyperlock Tool-Free blade holding system offers 1 ton of holding force for quick and reliable blade changes
  • Universal Fit System holds all major brands of blades
  • Powerful 4.2 amp motor with constant speed control won't stall under heavy load
  • Sonicrafter F80 DuoTech Oscillating Tool - RK5151K
  • (10) Sonicrafter Accessories
  • Tool Case


Length: 4 in.
Width: 11.6 in.
Depth: 3.5 in.
Weight: 3.3 lbs.



5.0 / 5.0
19 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Yes, I would recommend this to a friend (4)
Easy To Use (3)
Ergonomic Design (3)
Powerful (3)
Value (2)
Best Uses
Home Repair (4)
Jobsite (2)
Frequent Use (1)
Heavy Duty Requirements (1)
Tools that work!
First day I received this little gem couldn't wait to try it!

Took a plain 6x18 x1.5 in oak board and turned it into a sweet beveled shelf for my living room. The ease to change the blades was a delight. No more looking for chucks or specialty tools.

Just flip, twist, remove, insert, twist, close and your ready to go! Very time saving and stress free.

Great selection on blades and the sander is so handy! Storage box it comes in makes it easy to find and to keep us neat freaks happy with parts storage.

I do all sorts of home repairs myself, wood working and carving. Already have several projects in mind that I know the Sonicrafter F -80 is going to make much simpler.
June 10, 2016
Originally posted at
Fantastic tool!!!!!!
I received couple weeks ago & finally got to the project I wanted to work the F80. Works great allowing me to do rather finesse type work well. Then when I needed a little more power just flip the higher angle button & was able to power through. Best Rockwell tool yet (&, so far, they're all GREAT!
June 21, 2016
Originally posted at
Amazing Tool
I bought this 2 years ago and it has saved me dozens of hours, versus previous methods. The power, durability, and cutting speed is amazing . . . . it just keeps working. Fine quality. Wish I had this for my previous 35 years of carpentry work.
November 1, 2016
Originally posted at
Received as a gift. Have used it at least a dozen times already. The features of variable speed, quick change of blades and the power make this tool a must have for any contractor like myself. I have stopped using my "others".
January 7, 2017
Originally posted at
Yes, I would recommend this to a friend
Easy To Use
Ergonomic Design
Best Uses
Frequent Use
Heavy Duty Requirements
Home Repair
Great tool. A must have.
We love the Sonicrafter F80. Don't how we worked without it. A must have tool.
February 12, 2017
9 months ago
Describe Yourself:
Older model update
I have had mine for at least 5 years. I am a part time user of this tool. I was really disappointed when I tried to buy more blades. For Christmas I got new blades and thought I was back in business. The picture on the package led me to think I would be able to use the tool again. No way. Was I mad at packaging?? Yes. Ended up going to web site and finding out you have an adapter to use the universal blades. Question?? Why don't you sell the adapter with a set of new blades instead of making me order from you through the mail. You would save on postage too!!!
December 26, 2016
Originally posted at
Great tool
I purchased this as a gift for me. Excellent purchase. The ability to use all tools with this is great . Don't have to go out and buy all new accessories.
December 27, 2016
Originally posted at
Yes, I would recommend this to a friend
Easy To Use
Ergonomic Design
Best Uses
Large Projects
Small Projects
Home Repair
Handy Tool
Very handy tool . Comes in a nice kit , very easy to setup and use . It is corded so that might be something to take into consideration . I personally like corded tools , battery tools have their place , but you don't have to wait for a battery to charge before you can finish the job . I would recommend this tool .
January 7, 2017
11 months ago
Describe Yourself:
Can't tell it from new
I bought this reconditioned Multi-tool and can't tell it from a new one. It worked perfectly out of the box on a couple of test cuts. Seems to be solidly built and I'm sure it'll perform like a workhorse on my soon to start project.
January 12, 2017
Originally posted at
so much better than the rechargeable
I started refinishing all the woodwork and windows in my house with the rechargeable. The battery ran out so fast and created a lot of down time. I found the corded and thought I would give it a try, more power more work time. I love it!!!! I am able to get a lot more work done with the small amount of time I get.
January 14, 2017
Originally posted at

Questions & Answers

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Is this tool able to cut off screws holding down a redwood deck?
Jerry R on Jan 4, 2017
BEST ANSWER: Technically yes. You would need a good blade. The tool is great. If it were me though I would use a reciprocating saw and a high quality metal/demo blade


Rockwell Power Tools Warranty - All Tools Limited 30-Day Exchange Policy

During the first 30 days after date of purchase, you may exchange a tool which does not work properly due to defects in materials or workmanship by calling our customer service hotline number 866-514-ROCK (7625) to obtain a Return Authorization Number and our Returns Location address. To receive a replacement power tool, you must present a dated proof of purchase and return all original equipment packaged with the original product.

Limited Two Year Warranty

The manufacturer warrants that, for a period of 2 years from the date of purchase, this product shall be free of defects in materials and workmanship. We will repair or replace, at our option, this tool during the warranty period, and we may require that the tool be sent postage prepaid to an approved service center with all original equipment and a dated proof of purchase. Any replacement or repaired power tool will only be covered by the limited warranty for the balance of the warranty period from the date of the original purchase. NOTE: This warranty does not apply to cosmetic imperfections resulting from normal wear and tear.

What is Not Covered

This warranty applies only to the original purchaser at retail and is not transferable. This warranty does NOT cover service or replacement of parts resulting from normal wear. This warranty does NOT cover accessories or battery packs. This warranty does NOT cover malfunction, failure or defects due to:

  • abnormal use, abuse, neglect, or use not in accordance with the operations manual
  • damage resulting from accidents, drops or mishandling of the tool
  • alteration or repairs by other than approved service centers
  • commercial or rental use
  • The manufacturer makes no warranties, representations or promises as to the quality or performance of its power tools other than those specifically stated in this warranty.

    For Service

    Contact our toll-free consumer service line at 1-866-514-7625 to receive a replacement tool or to be directed to an approved service center. When you make a warranty claim or send the tool for warranty service, you must also include a dated proof of purchase.

    Additional Limitations

    This warranty is only valid for products purchased and used in the United States of America, its territories or Canada. Any implied warranty granted under state law, including warranties of merchantability or fitness for a particular purpose, are limited to two years from the date of purchase. The manufacturer is not responsible for direct, indirect, incidental or consequential damages including, but not limited to, liability for loss of income arising from the purchase or use of the product. Some states and provinces do not allow limitations on how long an implied warranty lasts and/or do not allow the exclusion or limitation of incidental damages, so the above limitations and exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state or province to province. The manufacturer declines any responsibility in regards to civil liability arising from abusive use or not in conformity with proper use and maintenance of the machine as described in the operator's manual.

    After the purchase, the manufacturer recommends proper maintenance of the machine and to read the operator's manual before using the machine.