---
product_id: 13490641
title: "Rockwell 3.0 Amp Sonicrafter Oscillating Multi-Tool, with Variable Speed, Hyperlock Clamping, and Universal Blade Fit System, 31-Piece Kit with Bag – RK5121"
brand: "rockwell"
price: "R$1229"
currency: BRL
in_stock: false
reviews_count: 12
url: https://www.desertcart.com.br/products/13490641-rockwell-3-0-amp-sonicrafter-oscillating-multi-tool-with-variable
store_origin: BR
region: Brazil
---

# 3.0 Amp Motor Power Hyperlock 1 Ton Clamping Force Variable Speed Dial for Precision Rockwell 3.0 Amp Sonicrafter Oscillating Multi-Tool, with Variable Speed, Hyperlock Clamping, and Universal Blade Fit System, 31-Piece Kit with Bag – RK5121

**Brand:** rockwell
**Price:** R$1229
**Availability:** ❌ Out of Stock

## Summary

> 🔨 Cut sharp, work smart, and never miss a beat with Rockwell Sonicrafter 3.0!

## Quick Answers

- **What is this?** Rockwell 3.0 Amp Sonicrafter Oscillating Multi-Tool, with Variable Speed, Hyperlock Clamping, and Universal Blade Fit System, 31-Piece Kit with Bag – RK5121 by rockwell
- **How much does it cost?** R$1229 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/13490641-rockwell-3-0-amp-sonicrafter-oscillating-multi-tool-with-variable)

## Best For

- rockwell enthusiasts

## Why This Product

- Trusted rockwell brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Custom Speed Control:** Variable speed dial lets you dial in the perfect pace for every project, from delicate trims to heavy-duty cuts.
- • **Power Meets Precision:** 3.0 Amp motor delivers robust cutting power for tough materials without overheating.
- • **Ready for Anything Kit:** 31-piece set with blades for cutting, scraping, and grout removal, all packed in a sleek carry bag for on-the-go pros.
- • **Universal Compatibility:** Fits all major brand blades and accessories, so you’re never limited—upgrade or swap tools effortlessly.
- • **Unmatched Blade Security:** Hyperlock clamping system provides 1 ton of tool-free clamping force, ensuring zero blade slippage even at tricky angles.

## Overview

The Rockwell 3.0 Amp Sonicrafter Oscillating Multi-Tool RK5121K is a versatile, corded electric tool featuring a powerful 3.0 Amp motor, variable speed control up to 3200 RPM, and a Hyperlock clamping system delivering 1 ton of blade-holding force. Compatible with all major brand blades and accessories, it comes in a 31-piece kit with a convenient carrying bag, making it ideal for DIYers and professionals tackling cutting, scraping, and grout removal tasks with precision and ease.

## Description

Rockwell 3.0 Amp Sonicrafter Oscillating Multi-Tool, with Variable Speed, Hyperlock Clamping, and Universal Blade Fit System, 31-Piece Kit with Bag – RK5121

Review: Great tool at a great price. - I actually really like this tool, just cutting base boards that are about 80 year old trim...so hard wood and it does a nice job! No burning smell like I've had with other manufacturers oscillating tools, just saw dust. Quick easy blade changes, as advertised, just be sure to retighten every once in a while. Tool came with blades for scraping and grout removal, I haven't had a chance or need to use those yet...but when I do, I'll reach for this tool! I Would definitely recommend.
Review: Great easy to use tool for the money - This tool is great, especially for the $79 price. I have never owned or used an oscillating tool before and, I don’t do a lot of projects. I needed to cut down a PVC catch basin drain riser for a yard project and also make some more drainage slits in it. This tool was easy to use and made the job quick and easy. Changing the blade is completely tool free and also easy. This model appears to be Rockwell’s entry level oscillating tool but is very capable for many household maintenance tasks.

## Features

- Features 3.2 degrees of oscillation for fast cutting and variable speed for precise control
- Hyperlock tool-free clamping system is easy to use and provides 1 ton of clamping force to prevent slipping during use, no matter the blade angle
- Universal fit system accepts all major brands of blades, sanders, and other accessories to be used on this Sonicrafter
- Great budget tool for more casual users and first time DIYers
- Universal Fit System accepts other brand accessories
- Hyper lock Tool-Less Blade Change - 1TON clamping force prevents blade slippage
- Variable Speed Dial for precision control
- 3.0 Amp Motor
- 21 lbs. max cutting load

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00ME95DCA |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #1,396,759 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #320 in Oscillating Power Tools |
| Brand | Rockwell |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (343) |
| Date First Available | August 1, 2014 |
| Global Trade Identification Number | 00845534012170 |
| Included Components | 31-piece kit (including various blades and a bag) |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 3.3 pounds |
| Item dimensions L x W x H | 2.5 x 4 x 11.25 inches |
| Item model number | RK5121K |
| Manufacturer | Positec USA |
| Maximum Rotational Speed | 3200 RPM |
| Number Of Pieces | 31 |
| Number of Handles | 1 |
| Part Number | RK5121K |
| Power Source | Corded Electric |
| Product Dimensions | 2.5 x 4 x 11.25 inches |
| Recommended Uses For Product | Cutting |
| Special Feature | Variable Speed |
| Special Features | Variable Speed |
| Style | Industrial |
| UPC | 845534012170 |
| Voltage | 120 Volts |

## Product Details

- **Brand:** Rockwell
- **Color:** Black
- **Power Source:** Corded Electric
- **Recommended Uses For Product:** Cutting
- **Voltage:** 120 Volts

## Images

![Rockwell 3.0 Amp Sonicrafter Oscillating Multi-Tool, with Variable Speed, Hyperlock Clamping, and Universal Blade Fit System, 31-Piece Kit with Bag – RK5121 - Image 1](https://m.media-amazon.com/images/I/41IoL3sAgQL.jpg)
![Rockwell 3.0 Amp Sonicrafter Oscillating Multi-Tool, with Variable Speed, Hyperlock Clamping, and Universal Blade Fit System, 31-Piece Kit with Bag – RK5121 - Image 2](https://m.media-amazon.com/images/I/71wY8MCkkDL.jpg)

## Questions & Answers

**Q: what blades does this come with**
A: 2 medium all purpose cutting  blades  along with sandpaper etc. nice package more then enough to start most any project

**Q: ¿do you know if this tool works with 220v (i´m living in argentina)?**
A: No, not directly.  But there might be some type of converter you can buy to plug into your 220 plug.  Or, check Rockwell's website and see if they make this tool available for your country.

**Q: What is the warranty on this please.**
A: The one I just bought (2019) says 3 years.

**Q: Does this give bad  Vibration to hands when turned on ?**
A: It does vibrate, but I wouldn't call it "bad."  More powerful units have a stronger vibration.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great tool at a great price.
*by S***Y on July 7, 2017*

I actually really like this tool, just cutting base boards that are about 80 year old trim...so hard wood and it does a nice job! No burning smell like I've had with other manufacturers oscillating tools, just saw dust. Quick easy blade changes, as advertised, just be sure to retighten every once in a while. Tool came with blades for scraping and grout removal, I haven't had a chance or need to use those yet...but when I do, I'll reach for this tool! I Would definitely recommend.

### ⭐⭐⭐⭐⭐ Great easy to use tool for the money
*by J***C on August 1, 2020*

This tool is great, especially for the $79 price. I have never owned or used an oscillating tool before and, I don’t do a lot of projects. I needed to cut down a PVC catch basin drain riser for a yard project and also make some more drainage slits in it. This tool was easy to use and made the job quick and easy. Changing the blade is completely tool free and also easy. This model appears to be Rockwell’s entry level oscillating tool but is very capable for many household maintenance tasks.

### ⭐⭐⭐⭐ This Rockwell Rocks!
*by W***L on January 28, 2024*

Not sure what's going on with Newer models from Rockwell. Hower this model has proven to be trustworthy to get the job Done. My 1st one lasted about 8years still work but won't reach max speed. I tried other brands they run Loud unbalanced vibrations, blades coming loose or the unit getting to Hot under a load. Returned them All to Re-marry this old school Rockwell. The above negative issues are NOT a problem with the Rockwell sonicrafter RK5121K

## Frequently Bought Together

- Rockwell 3.0 Amp Sonicrafter Oscillating Multi-Tool, with Variable Speed, Hyperlock Clamping, and Universal Blade Fit System, 31-Piece Kit with Bag – RK5121
- Rockwell RW8967.3 Sonicrafter Oscillating Multitool Extended Life Bimetal Wood & Nail End Cut Blade (3-Pack), 1-3/8"
- Rockwell RW8921 Sonicrafter Oscillating Multitool Rigid Scraper Blade with Universal Fit System

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.br/products/13490641-rockwell-3-0-amp-sonicrafter-oscillating-multi-tool-with-variable](https://www.desertcart.com.br/products/13490641-rockwell-3-0-amp-sonicrafter-oscillating-multi-tool-with-variable)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-24*