---
product_id: 143828822
title: "– Cordless Rotary Tool, 3.7V Li-ion Mini Rotary Multi-Tool Kit with Variable Speed, 42pcs Accessories Kit Electric Rotary DIY Grinder for Polishing, Cleaning and Engraving"
brand: "chokmax"
price: "HK$348"
currency: HKD
in_stock: true
url: https://www.desertcart.hk/products/143828822-cordless-rotary-tool-3-7v-li-ion-mini-rotary-multi
store_origin: HK
region: Hong Kong
---

# 3.7V Power 3 Speeds 42 Accessories – Cordless Rotary Tool, 3.7V Li-ion Mini Rotary Multi-Tool Kit with Variable Speed, 42pcs Accessories Kit Electric Rotary DIY Grinder for Polishing, Cleaning and Engraving

**Brand:** chokmax
**Price:** HK$348
**Availability:** ✅ In Stock

## Summary

> 🔧 Unleash Your Inner Craftsman!

## Quick Answers

- **What is this?** – Cordless Rotary Tool, 3.7V Li-ion Mini Rotary Multi-Tool Kit with Variable Speed, 42pcs Accessories Kit Electric Rotary DIY Grinder for Polishing, Cleaning and Engraving by chokmax
- **How much does it cost?** HK$348 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/143828822-cordless-rotary-tool-3-7v-li-ion-mini-rotary-multi)

## Best For

- chokmax enthusiasts

## Why This Product

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

## Key Features

- • **The Ultimate Gift:** A thoughtful present for the DIY lover in your life—perfect for birthdays and special occasions!
- • **Effortless Control:** Experience lightweight design and adjustable speeds (5000/10000/15000 RPM) for precision work.
- • **Long-lasting Power:** Enjoy 90 minutes of continuous use with just a 2-hour charge—creativity without interruption!
- • **Perfect for Beginners:** Designed for ease of use, making it ideal for both novices and seasoned DIY enthusiasts.
- • **Unmatched Versatility:** Tackle any DIY project with 42 essential accessories at your fingertips.

## Overview

The CHOKMAX Cordless Rotary Tool is a compact and powerful 3.7V mini rotary tool designed for a variety of DIY tasks. With adjustable speeds and a comprehensive 42-piece accessory kit, it allows users to polish, clean, engrave, and more with ease. Its lightweight design ensures comfort during extended use, while the rechargeable battery provides 90 minutes of uninterrupted operation. Ideal for both beginners and experienced crafters, this tool is a must-have for any creative project.

## Description

Cordless Rotary Tool, 3.7V Li-ion Mini Rotary Multi-Tool Kit with Variable Speed, 42pcs Accessories Kit Electric Rotary DIY Grinder for Polishing, Cleaning and Engraving

## Features

- CONQUER ANY SMALL DIY TASK EASILY - With 3 adjustable speeds (5000/10000/15000 RPM), our mini rotary tool empowers you to effortlessly tackle any small DIY project. Even if you're a beginner, still can experience effortless control joy. The cloud-lightweight feeling reduces hand strain, allows you to work for hours without fatigue.
- DIVERSITY ROTARY TOOL ACCESSORIES - This rotary tool set includes a high-performance and low-noise rotary tool with 42 of the most popular power rotary tool accessories for fine DIY work. Ideal for carving, sanding, grinding, polishing, or cutting, this electric rotary tool is perfect for creating resin crafts. It's like having a whole toolbox in one convenient package. Note: Not suitable for heavy-duty projects.
- USB CONNECTOR FOR CONVENIENT CHARGE - Charging 2 hours for continuous work 90 mins, 3.7 V rechargeable lithium battery for safe operation and long using life. Our mini cordless rotary tool is powered by a long-lasting battery that ensures uninterrupted operation. No more frequent interruptions or frustration of running out of power. Enjoy uninterrupted creativity!
- UNLEASH YOUR CREATIVITY WITH NEW POWER - Featuring an upgraded motor, our mini rotary tool puts more power into your DIY projects. Handling most of the small DIY materials, perfecting every detail, and personalizing special gifts for your family.
- ATTENTION - Different tool accessories fit different collets. If the tool accessories come off easily from the head of rotary tool, please replace a new collet to fit it.
- GOOD GIFT - Gifts for Men, Gifts for Dad, Dad Birthday Gift, Father's Day Gift

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | CHOKMAX |
| Part Number | MRT22DC |
| Product Dimensions | 8 x 5 x 1 cm; 130 g |
| Item model number | HJ102 |
| Colour | Gray |
| Style | Tool,Work |
| Power Source | Battery Powered,Electric |
| Voltage | 3.7 Volts |
| Special Features | Electric |
| Included Components | CHOKMAX MRT22DC 3.7V Li-ion Battery Rotary Tool, 40pcs accessories in one case including 20pcs sanding bands, USB Connector, User Guide |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 130 g |

## Product Details

- **Brand:** CHOKMAX
- **Voltage:** 3.7 Volts
- **Power source:** Battery Powered,Electric
- **Recommended uses for product:** Sanding, Polishing, Grinding
- **Colour:** Gray

## Images

![– Cordless Rotary Tool, 3.7V Li-ion Mini Rotary Multi-Tool Kit with Variable Speed, 42pcs Accessories Kit Electric Rotary DIY Grinder for Polishing, Cleaning and Engraving - Image 1](https://m.media-amazon.com/images/I/61wDSmsuwuL.jpg)

## Available Options

This product comes in different **Colour Name** options.

## Questions & Answers

**Q: Will this drill holes in a watch bezel?? Stainless steel? Also what drill mm parts does this come with**
A: Lacks power for drilling steel. Comes with a 1mm drill and 2 smaller size.
Fine for light duty drilling and polishing.

**Q: We Hi how do you attach the circular saw? Thanks**
A: In the tools provided there is a mandrel with a screw in the end of it, and two fibre washers. You remove the screw and mount the circular saw between the two washers onto the screw. Ensure that the saw teeth are pointing in the correct direction to match the rotation of the tool. Attach the screw/saw assembly to the mandrel and tighten into position. Now choose the correct size collet for the mandrel, fit that to the tool head and tighten the mandrel into the collets jaws. You're ready to go.

**Q: how loud is this device in decibels?**
A: Hi, don't have a measuring device but this is quiet, minor "whirring".....it does pick up as you go through the 3 speed settings but minimal noise.    Hope this helps.

**Q: Can i polish jewellery with the kit? Gold and diamonds**
A: It has three speeds and it’s very high on speed 3. It also comes with a range of tools including a soft pad so providing you have purchased a suitable polishing compound/cream etc etc I don’t see a reason why it wouldn’t polish the items you suggested

## Frequently Bought Together

- CHOKMAX Cordless Rotary Tool, 3.7V Li-ion Mini Rotary Multi-Tool Kit with Variable Speed, 42pcs Accessories Kit Electric Rotary DIY Grinder for Polishing, Cleaning and Engraving
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**Shop now:** [https://www.desertcart.hk/products/143828822-cordless-rotary-tool-3-7v-li-ion-mini-rotary-multi](https://www.desertcart.hk/products/143828822-cordless-rotary-tool-3-7v-li-ion-mini-rotary-multi)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-28*