---
product_id: 711871956
title: "MB21 Pro Brushless DA Polisher | 21mm Throw, 6” Plate, 1200W Motor, 5/16”-24 Thread, 6-Speed | Auto, Boat & Marine Detailing Tool for Paint Correction, Swirl Removal, Glossy Finish"
brand: "maxshine"
price: "$928.06"
currency: USD
in_stock: true
reviews_count: 13
url: https://www.desertcart.us/products/711871956-mb21-pro-brushless-da-polisher-21mm-throw-6-plate-1200w
store_origin: US
region: United States of America
---

# 1200W brushless motor power 21mm long-throw orbit 6-speed variable control MB21 Pro Brushless DA Polisher | 21mm Throw, 6” Plate, 1200W Motor, 5/16”-24 Thread, 6-Speed | Auto, Boat & Marine Detailing Tool for Paint Correction, Swirl Removal, Glossy Finish

**Brand:** maxshine
**Price:** $928.06
**Availability:** ✅ In Stock

## Summary

> ✨ Elevate your shine game with pro power and precision! ⚙️

## Quick Answers

- **What is this?** MB21 Pro Brushless DA Polisher | 21mm Throw, 6” Plate, 1200W Motor, 5/16”-24 Thread, 6-Speed | Auto, Boat & Marine Detailing Tool for Paint Correction, Swirl Removal, Glossy Finish by maxshine
- **How much does it cost?** $928.06 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/711871956-mb21-pro-brushless-da-polisher-21mm-throw-6-plate-1200w)

## Best For

- maxshine enthusiasts

## Why This Product

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

## Key Features

- • **Tailored Control:** Six-speed dial lets you dial in the perfect speed for cutting, polishing, or finishing every panel.
- • **Ergonomic Mastery:** Comfort-grip design with low vibration reduces fatigue, making long detailing jobs feel effortless.
- • **Power Meets Precision:** 1200W brushless motor delivers consistent torque with less heat and vibration for marathon detailing sessions.
- • **Universal Compatibility:** Fits most 5/16”-24 thread 6” polishing pads—your go-to tool for cars, boats, and RVs alike.
- • **Max Coverage, Minimal Time:** 21mm throw and 6” backing plate cover more surface area for faster swirl removal and flawless finishes.

## Overview

The Maxshine MB21 Pro is a professional-grade brushless dual-action polisher featuring a powerful 1200W motor, a 21mm long-throw orbit, and a 6-inch backing plate. Designed for automotive, boat, and marine detailing, it offers 6-speed variable control and ergonomic comfort for efficient paint correction, swirl removal, and high-gloss finishes. Compatible with standard 5/16”-24 thread pads, it’s the perfect tool for pros and enthusiasts seeking reliable, fast, and versatile polishing performance.

## Description

Buy Maxshine MB21 Pro Brushless DA Polisher | 21mm Throw, 6” Plate, 1200W Motor, 5/16”-24 Thread, 6-Speed | Auto, Boat & Marine Detailing Tool for Paint Correction, Swirl Removal, Glossy Finish: Buffers & Polishing Machine Backing Plates - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Excellent Backup Machine for Professional User - It is important to note that I used this machine professionally on a daily basis for one solid month. My main dual action polisher is a Rupes 21 Mark III. Great machine, but unfortunately it was down for a warranty claim and I needed a backup. Since the MaxShine machines intrigued me, I decided to buy a 21 Pro to compare to my Rupes and to have as a backup when it returned from warranty service. I used it for a solid month and can say the following: Ergonomics are great, actually. I like the feel of the machine in my hands. The handle is thick and nicely angled. The head is palm sized for my larger hands and has a solid rubber grip that really looks nice too. The tool feels more compact than it is, if that makes sense. Its proportions and weight distribution are excellent. 5 of 5 stars Comfort is a 4 of 5 While it doesn't vibrate badly, it is not as smooth as the Rupes. I would describe the feel as more of a rumble than a sharp vibration. I have used it for spot work as well as hours long compounding and polishing jobs with no pain or fatigue. If I had never used this type of machine I likely would not have even made mention of this. I have added the "washer mod" underneath the backing plate so that there is no contact between the shroud and plate, but the plate still doesn't spin as freely as I would expect. With the machine off I spin the pad by hand and it stops quicker than other machines. Is this a lower quality bearing or something else? So far it has not made any odd noises, does not over heat, or give any indication of premature failure so this may be a non-issue. Don't confuse this with stalling. I have no complaints about its abilities. It seems to be an excellent value for the money spent. It costs less than half the Rupes and does the same things. The differences for me are the rumble feeling especially at higher RPM and my question about the bearing. Whether you are a professional looking for a less expensive backup machine (or even primary, who knows) or you are a hobbyist this is a great machine that does serious work in fine fashion.
Review: Great machine - With a 21mm throw this unit is my go to for heavy scratch removal, but can be used to polish and wax too. Minimal vibration and fits well into your hands.

## Features

- UNIVERSAL COMPATIBILITY – Designed for professional paint correction on cars, trucks, SUVs, boats, and RVs; compatible with most 5/16"-24 thread 6” polishing pads and accessories.
- 21MM THROW & 6” BACKING PLATE – Long-throw orbit and 6-inch plate maximize surface coverage for faster correction and swirl-free finishing on large panels.
- BRUSHLESS 1200W MOTOR – High-efficiency motor delivers powerful, consistent torque with less heat and vibration for smoother operation and extended tool life, with no carbon brushes to replace.
- 6-SPEED CONTROL & ERGONOMIC DESIGN – Variable speed dial and comfortable, low-vibration grip provide precise control for cutting, polishing, and finishing stages.
- PROFESSIONAL DETAILING PERFORMANCE – Ideal for body shops, mobile detailers, and enthusiasts seeking reliable, high-gloss results in auto, boat, and marine detailing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0F18B6DVJ |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #112,345 in Automotive ( See Top 100 in Automotive ) #134 in Body Repair Grinders & Polishers #6,462 in Car Care |
| Customer Reviews | 4.5 4.5 out of 5 stars (179) |
| Date First Available | March 12, 2025 |
| Item Package Quantity | 1 |
| Item Weight | 8.6 pounds |
| Item model number | MB21Pro |
| Manufacturer | MaxShine |
| Maximum Power | 1200 Watts |
| Part Number | MB21Pro |
| Product Dimensions | 6.89 x 20.67 x 6.1 inches |
| Size | M21 Pro |
| Speed | 5200 RPM |
| UPC | 810123895830 |
| Voltage | 110 Volts |
| Warranty Description | Manufacturer Warranty |
| Wattage | 1000 watts |

## Product Details

- **Brand:** Maxshine
- **Color:** 21mm Brushless Mb21 Pro
- **Included Components:** 6" Backing Plate
- **Material:** Alloy Steel, Metal
- **Power Source:** Corded Electric

## Images

![MB21 Pro Brushless DA Polisher | 21mm Throw, 6” Plate, 1200W Motor, 5/16”-24 Thread, 6-Speed | Auto, Boat & Marine Detailing Tool for Paint Correction, Swirl Removal, Glossy Finish - Image 1](https://m.media-amazon.com/images/I/71AnnV1FexL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Backup Machine for Professional User
*by P***E on October 17, 2021*

It is important to note that I used this machine professionally on a daily basis for one solid month. My main dual action polisher is a Rupes 21 Mark III. Great machine, but unfortunately it was down for a warranty claim and I needed a backup. Since the MaxShine machines intrigued me, I decided to buy a 21 Pro to compare to my Rupes and to have as a backup when it returned from warranty service. I used it for a solid month and can say the following: Ergonomics are great, actually. I like the feel of the machine in my hands. The handle is thick and nicely angled. The head is palm sized for my larger hands and has a solid rubber grip that really looks nice too. The tool feels more compact than it is, if that makes sense. Its proportions and weight distribution are excellent. 5 of 5 stars Comfort is a 4 of 5 While it doesn't vibrate badly, it is not as smooth as the Rupes. I would describe the feel as more of a rumble than a sharp vibration. I have used it for spot work as well as hours long compounding and polishing jobs with no pain or fatigue. If I had never used this type of machine I likely would not have even made mention of this. I have added the "washer mod" underneath the backing plate so that there is no contact between the shroud and plate, but the plate still doesn't spin as freely as I would expect. With the machine off I spin the pad by hand and it stops quicker than other machines. Is this a lower quality bearing or something else? So far it has not made any odd noises, does not over heat, or give any indication of premature failure so this may be a non-issue. Don't confuse this with stalling. I have no complaints about its abilities. It seems to be an excellent value for the money spent. It costs less than half the Rupes and does the same things. The differences for me are the rumble feeling especially at higher RPM and my question about the bearing. Whether you are a professional looking for a less expensive backup machine (or even primary, who knows) or you are a hobbyist this is a great machine that does serious work in fine fashion.

### ⭐⭐⭐⭐⭐ Great machine
*by E***N on October 25, 2025*

With a 21mm throw this unit is my go to for heavy scratch removal, but can be used to polish and wax too. Minimal vibration and fits well into your hands.

### ⭐⭐⭐⭐⭐ Move aside Rupes...
*by A***. on October 21, 2018*

This is my second 21mm polisher I bought it as a back up to my torq 22D. Ok so this polisher is great. Compared to the 22d its shorter in length, its trigger is spot on with the variable speed dial. Its very powerful and the 1000 watt motor delivers a lot to the pad. It feels like quality and its vibration is average. I see no flaws with it yet. Although the supplied plate did hit the shroud so I replaced it with a 22d 6 inch plate and now it spins freely. I would definitely recommend it. So now I have my 22d with a 5 inch and the m21 pro with a 6 inch..will be snagging a 12mm I think...2 month update- all I can say is..perfection! This 21mm delivers on every level. Performs better than the torque 22d..worth every penny of $210

## Frequently Bought Together

- Maxshine 21mm Brushless Dual Action Polisher – 1200W AC Motor, Low Noise, Soft Start, Variable Speed, Ergonomic Grip – Professional Car Detailing & Polishing Tool
- 3D One Car Scratch & Swirl Remover - Rubbing Compound & Finishing Polish - Buffing Compound Swirl Remover - True Car Paint Correction 16oz.
- Buffing Sponge Pads , SPTA 5Pcs 6.5 Inch Face for 6 Inch 150mm Backing Plate Compound , Cutting Polishing Pad Kit For Car Buffer Polisher Compounding , Polishing and Waxing -SQMIX65

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-04-27*