Model # RK5140K

Internet #204278550

Rockwell 3.0-Amp Sonicrafter Kit with Hyperlock

Discontinued Rockwell

3.0-Amp Sonicrafter Kit with Hyperlock

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Frequently Bought Together

Product Overview

The Rockwell Sonicrafter Kit with Hyperlock (RK5140K) is three systems in one, creating an efficient oscillating tool for all your sanding, polishing, scraping and cutting needs. The Hyperlock feature allows for quick and easy toolless blade changes, securely tightens blades with up to a ton of clamping force and accepts other brand blades with its universal fit system. Fast and efficient, the constant speed control allows the tool to maintain speed-of-cut under load, making it easy to tackle heavy-duty jobs like notching thick wood, removing grout and cutting through pipe. The variable-speed design operates with micro sonic high-frequency oscillation to produce smooth, safe movements without kickback. Great on the job site or around the house, this efficient tool boasts a slim body that makes it ideal for working in confined spaces, whether you're a professional or an avid do-it-yourselfer.

  • Includes oscillating tool and nine accessories
  • Powerful 3.0-amp motor with constant speed control handles a variety of applications
  • Hyper lock enables tool-free blade changes with up to one ton of clamping force to prevent blade slippage
  • Universal fit system adapts to fit most other brands' accessories
  • Variable speed dial for precision control
  • Versatile design can be used to cut, saw, scrape, sand, shape, polish and remove grout
  • 3-year limited warranty
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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$154.40 /piece
$159.00 /each
$171.69 /each
$179.00 /each
Name 3.0-Amp Sonicrafter Kit with Hyperlock 3 Amp Oscillating Multi-Tool Kit T12OT 12-Volt Oscillating Multi-Tool Velocity 7.0 Amp Corded 2-Position Oscillating Tool Kit for Plywood, Drywall, PVC Pipe, Wood, and Tile (10-Accessories)
Brand Rockwell Makita Triton Dremel
Ratings (11) (28) (0) (16)
Reconditioned No No No No
Power Tool Features Attachments Included,Case Included,Keyless Chuck Attachments Included,Variable Speed Bag Included,Keyless Chuck,Variable Speed
Cordless/ Corded Corded Corded Cordless Corded
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Product Depth (in.)
Product Height (in.)
Product Width (in.)


Accessory Change System
The Hyperlock Universal Fit system allows for a quick and easy tool-less blade changes located on the top of the tool.
Accessory Compatibility
RW8921, RW8922, RW8923, RW8924, RW8925, RW8926, RW8927, RW8928, RW8928.3, RW8929, RW8929.3, RW8930, RW8930.3, RW8931, RW8931.3, RW8932, RW8932.3, RW8933,RW8933.3, RW8934, RW8934.3, RW8935, RW8935.3, RW8936, RW8936.3, RW8937, RW8937.3, RW8938, RW8940
Color Family
Cord Length (ft.)
Corded Tool Type
Cordless/ Corded
Oscillation Arc Range (Degrees)
Oscillations Per Minute (OPM)
Product Weight (lb.)
Tools Product Type
Power Tool

Warranty / Certifications

Certifications and Listings
1-UL Listed,CSA Listed,ETL Listed
Manufacturer Warranty
3 years limited

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Customer Questions & Answers

Stopped working

I had this for about a2 yrs. I have only used it 4 times. It just stopped working. I don't see any troubleshooting help included with this. any ideas?
Asked by: santiagojimbee
There are several possibilities. If your tool is still in warranty Rockwell can replace it for you. Please call Rockwell customer service at 1-866-514-7625 for troubleshooting and to discuss a possible warranty replacement.
Answered by: Worx Product Expert
Date published: 2015-09-20
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Customer Reviews

3.0-Amp Sonicrafter Kit with Hyperlock is rated 4.1 out of 5 by 11.
Rated 1 out of 5 by from Great tool, NO parts available! I bought this RK5140K Sonicrafter X2 two years and have loved it. I don't know how I ever got along without it. I am profoundly surprised and disappointed to find out that I will now have to throw away this great tool because there are apparently NO repair parts available. I have searched the internet for several hours with no results. I will definitely NOT purchase another one. I will check for a brand that has repair parts availability. Very, very disappointed.
Date published: 2016-09-03
Rated 1 out of 5 by from Reference Rockwell Oscillating Tool RK5100K, Very difficult to find a blade to fit the tool. Rockwell has changed the configuration on the tool to a smaller sized hole. Disappointed to say the least.
Date published: 2014-10-16
Rated 5 out of 5 by from Gets the job done. Had to replace a couple patio doors, (glass fogged), called the manufacturer as to how to remove solid slab side, he said their sealed and screwed in from the factory and must be cut out. Without this tool I don't know how I would have gotten the old door slabs out. Worked great, I should have bought one of these years ago, my new favorite tool. I was going to buy the 5141k for the light, but Lowes had this on clearance at a fantastic price, and I couldn't pass it up.
Date published: 2015-01-19
Rated 5 out of 5 by from I was skeptical, not anymore. I needed to make some cuts in a few tight areas in my home where a jig saw or a circular saw just cant reach. I've seen the infomercials and didn't buy in to it for a second. I then noticed other tool manufactures coming out with these tools and thought maybe there is something to it. Like I said I had some tight cuts to make and the only tool out there that could possibly get it done was one of these oscillating tools. I got this RK5140K at Lowes for $99. And figured I'd give it a try cutting a hole in my cabinet to vent a microwave. On the first try without reading the instructions (in a hurry) NOTHING! It made a bunch of noise but cut nothing, I wasn't surprised, I had been skeptical about these tools anyhow. I played with it a bit and tightened up the blade some more and WOW!. I couldn't believe my eyes! Like a hot knife through butter! This is not like any other tool I have ever owned! I find myself going to this tool for nearly everything. Best $100 I've ever spent! If your skeptical, if your dad doesn't use one, if you think you don't need one, what ever excuse you have keep and open mind and give one of these a won't regret it!
Date published: 2015-02-23
Rated 5 out of 5 by from An amazing tool I own a home repair business and have seen alot of buzz about oscillating tools. This is a fantastic tool for helping out with lots of odd tasks. I have used the tool for ceramic tile work and sawing wood in lots of hard to reach places. I have been reluctant to buy the new Rockwell tools, now I own three Rockwell power tools. Great stuff!
Date published: 2014-10-21
Rated 4 out of 5 by from Great odd ball tool I purchased this tool along with my water softener. I knew I had an existing softener that was in a tight space. Good thing I did, I had to cut the existing water pipes very close together. It was great, a nice clean cut. I also used it to quickly sand my walls down to knock down the sand previous owners put in the paint for texture. It worked well but if you have a larger sander that would probably be better, but i dont so this was better than doing it by hand. The quick change on top is key, no tools to loose and very strong. Needs a light, but I see new ones have that now. That's my reasoning for 4 stars Make sure you wear ear plugs, this tool vibrates very quickly and makes loud piercing sounds. This is normal, I just like to protect my hearing, being a young buck and all.
Date published: 2015-10-27
Rated 4 out of 5 by from Best Oscillator I've used so far I've had this thing for a year, its helped me through quite a few jobs however after a year it decided to die on me, figured it was just dusty inside, had a look inside cleaned everything by blowing some light air, brushes were good. Everything looked great but just has no more power and eventually stopped working :'( , But It worked so well when it was working that i will buy another one.
Date published: 2015-09-16
Rated 5 out of 5 by from Highly recommended Used this tool for cutting jambs for floor install today. worked like a charm!. plenty of power. No vibration. Easy to change blade. Blades well made. Great tool. Great packaging/case.
Date published: 2016-01-23
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