Model#: RKWNRK5142K

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Rockwell RK5142K Sonicrafter F50 Oscillating Tool

  • Rockwell RK5142K Sonicrafter F50 Oscillating Tool
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The Rockwell Sonicrafter F50 oscillating tool has raised the bar for the oscillating tool category. With the increased oscillating angle of 5 degrees and the constant speed control, it's one of the fastest cutting oscillating tools available. Not only is it fast, but it can be pushed harder than any other tool out there. This results in dependable, best-in-class performance. The Vibrafree counterweight offsets vibration for smooth cutting. The Hyperlock tool-less blade change with one-ton of clamping force allows for easy blade changes and prevents blade slippage. The F50 also metal gear housing/metal Hyperlock lever, and variable speed. Additionally, all Sonicrafter models continue to be the only tools that offer a truly universal accessory interface to accept any brand of accessories without the need for an adapter. The F50 comes with 31 Accessories and a carry bag.
  • 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 amp motor with 5 degrees of oscillation and constant speed control won't stall under heavy load
  • Variable Oscillation speed at 11,000 - 20,000 OPM
  • 4 degree dual oscillation angle
  • Sonicrafter F50 Oscillating Tool - RK5142K
  • (31) Sonicrafter Accessories
  • Tool Bag


Length: 4 in.
Width: 11.3 in.
Depth: 2.3 in.
Weight: 3.3 lbs.



4.6 / 5.0
5 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Great tools , great customer service,
Great tools, Great customer services, I recommend all ways
This review was collected as part of a promotion
August 2, 2017
Originally posted at
The products are good and the customer service is
I bought the rockwelltools ripper for the first time, but I had a problem with the product, and I appreciate it being done well. The product I sent back works very well and is very easy to work with.
I want to give my customer service the best score.
Thank you
May 4, 2017
Originally posted at
Beast tool I have bought in years
Been in construction business for 35 years and don't know how I made it without this tool.
September 20, 2017
Originally posted at
Does the job
Rockwell replaced a unit that broke . They stood by their product and displayed out standing customer service.

The tool works as specified but if it's like the last one , it gets louder and vibrates more as it is used. Note I only used the last unit 10 times to trim a wooden door frame when installing tile. I used it to cut some dowel plugs flush in the shop.
This review was collected as part of a promotion
August 28, 2017
Originally posted at
Replacement of a previous model which went bad.
This model was a replacement of a 3.0 model which went bad. Have only used this new model once, but it performed well. Used it to sand portions of an exterior deck I was restaining, where I could not access with my belt sander. Have not had to use the cutting attachments yet, but with the power noticed, it should work out well. I do have to say that I was very impressed with the service I received when inquiring about having my previous model repaired/replaced. Very friendly, professional and, quick. I have not had this kind of service with other tool manufactures and Rockwell should be proud of the people working for them.
August 28, 2017
Originally posted at

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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.