[Open Box] M312 – 3in Plate, 12mm Throw, 550W

Out of stock

SKU: O-M312
  • 12mm throw with a 3in backing plate is the ideal orbital polisher for for mastering curves and small details
  • Tremendous flexibility with the wide 2,000 to 6,000 OPM speed range
  • Easy to handle and maneuver with the short-throw orbit and efficient motor power
  • Great companion to a long-throw polisher to perfect where they cannot
  • Pair with a Headlight Restoration Kit for quick corrections

Original price was: $169.99.Current price is: $135.99.

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Essential M312 Dual Action Polisher

Orbital Polisher
Precision Polishing

The M312 orbital polisher effortlessly handles polishing intricate surfaces. This dual action polisher is a must-have for any detailer. With its 12mm short-throw range and a 3in backing plate, it perfects where larger polishers cannot. Its sleek and ergonomic design ensures maximum comfort and control, particularly useful for beginners, allowing you to conquer even the most intricate curves and contours smoothly.

M312 Orbital Polisher

Features and Benefits

Exceptional Swirl Removal Along Small Panels and Curves

The Dual Action M312 has been meticulously crafted to tackle swirl marks, enhance the luster of your finish, and provide unmatched protection, leaving you with masterful results.

M312 Orbital Polisher Polishing Front of a Black Car BMW

Vast Adaptability with the Adjustable 6-Speed Control 

The six speed control adjustments, ranging from 2,000 to 5,500 OPM, help you achieve fine polishing. Easily spin the speed dial while polishing to maintain a constant and seamless job flow. 

M312 Orbital Polisher Polishing Front of a Black Car BMW Speed Dial

Long-Lasting Construction from High-Quality Component

The CNC machined counterweight, which gives this orbital polisher its dual action motion, is made from premium-grade steel. It has been manufactured to withstand heavy usage and maintain its quality over time. 

M312 Orbital Polisher Polishing Front of a Black Car BMW

Orbital Polisher Provides Perfectly Balanced Dual Action Motion

The balanced internal components ensure the maximum transfer of power to the surface guaranteeing top polishing results. For this orbital polisher, it is best for removing swirl marks, scratches, and oxidation in small and intricate areas. 

M312 Orbital Polisher Polishing Front A Panel Blue Car

12mm Short-Throw and 550W Motor Maximize Comfort and Control

The efficient motor power and short-throw orbit make handling and maneuvering this orbital polisher easy. The large, rubberized grip and sleek body design increases comfort and reduces fatigue. 

M312 Orbital Polisher Polishing Front of a Black Car BMW

The M312 12mm/550W Dual Action Polisher

The 3-inch Dual Action Polisher

Superior Internal Components MaxShine M312 Orbital Polisher

Crafted with quality and durability in mind, the M312 is comprised of a steel CNC machined counterweight and NSK bearing
Adjustable Speed MaxShine M312 Orbital Polisher

The 6 adjustable speed offers seamless polishing, helping your productivity.
Small But Powerful MaxShine M312 Orbital Polisher

The 3-inch backing plate gets into the details, further assisted by the 12mm mid-throw range for precision polishing in small areas.

What's in the Box?

MaxShine M312 Orbital Polisher
MaxShine Dual Action Polishers

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MaxShine M312 Orbital Polisher

Dual Action

Dual Action & Rotary






3mm, 12mm




2,000-4,700 RPM

2,500-6,500 OPM

2,000-5,500 OPM

Backing Plate

1.5in & 2in




2.11 lbs

5.11 lbs

4.13 lbs

Dimensions (in)

12(L) x 2.13(W) x 3.05(H)

13.4(L) x 3.5(W) x 5.4(H)

12.5(L) x 3.1(W) x 4.0(H)

Summary of the Orbital Polisher 

  • Specifically designed for polishing small and intricate areas, removing swirls, scratches, and oxidation.
  • Precision polishing with 12mm mid-throw range, and 550W of the balanced power.
  • Better control with the adjustable 6 speeds.  
  • The 13-inch long power cord allows more reach. 



People Also Asked 

What type of car polisher should I choose?

It depends on your job requirements and the level of your skill. The short to mid-throw range works polishing small and intricate areas, while the long-throw ones are ideal for covering extensive areas. The shorter the throw range and the less power, the better control of the polisher for you. 

What long throw polisher pairs best with the
M312 3in Dual Action Polisher?

MaxShine M15 Pro Dual Action Orbital Polisher

The M15 Pro Dual Action Polisher has a 15mm throw and 5in backing plate. This polisher covers more area faster than the M312 because of its larger throw and larger plate. They pair well together because the M312's smaller 3in backing plate and 12 mm throw better covers smaller areas or panels with more complex curves where the M15 Pro cannot. 

Weight 5 lbs
Dimensions 15.2 × 5.8 × 4 in
Product Dimensions & Weight

12.5(L) x 3.1(W) x 4.0(H) in, 4.13 lbs

Polisher Type

Dual Action

Orbit Diameter


Backing Plate

3in (75mm)



No Load Speed

2000-5500 OPM

Spindle Thread Size

5/16" – 24

Power Cord

13 Foot Heavy Duty Cable

Speed Control

1 – 6



Maxshine_Acronim_Logo Brand


Condition New: Each product in new condition guarantees pristine quality and optimal effectiveness, setting a new standard for automotive care. Open-Box: Unbeatable Value, Trusted Quality. Shop confidently knowing our open-box products offer exceptional value without compromising on quality.



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What's the difference between a dual-action polisher and a rotary polisher?

A dual-action polisher moves in two ways: it rotates on a spindle and oscillates on an axis. This reduces the risk of paint damage compared to rotary polishers, which only spin and can be more aggressive.

What are the advantages of using a dual-action polisher over other types?

Dual-action polishers are generally safer for beginners, produce less heat, and are less likely to cause paint damage compared to rotary polishers.

Is the M312 suitable for beginners?

Yes, the M312 is designed for both beginners and professionals. Its smaller size makes it easy to handle and control.

Can I use the M312 for polishing other surfaces besides cars?

Yes, the M312 can be used on various surfaces like boats, motorcycles, and even certain household surfaces, but ensure compatibility and use appropriate pads and products.

What is the recommended pad size for the M312?

The M312 is designed to work with 3-inch pads.

Does the M312 come with variable speed settings?

Yes, the M312 usually offers variable speed settings, allowing users to adjust the speed based on the task and surface.

What kind of warranty does the M312 come with?

MaxShine’s M312 comes with a 1-year limited warranty covering manufacturing defects. Check the warranty page for specific details and exclusions.

Can I use the M312 polisher for applying wax or sealants?

Yes, the M312 can be used to apply wax or sealants using appropriate pads.

Does the M312 require specific polish or compounds?

It's recommended to use polishes and compounds compatible with dual-action polishers. There might be brand recommendations, but generally, quality products suitable for dual-action polishers work well.

Is it safe to use the M312 on all types of paint finishes?

The M312 is generally safe for most paint finishes, but it's advisable to test it on a small inconspicuous area first, especially on delicate or custom paint jobs.

Can a dual-action polisher remove deep scratches?

While dual-action polishers can address light to moderate scratches, they might struggle with deep scratches. Heavy defects may require more aggressive methods or professional intervention.

What kind of maintenance does a dual-action polisher need?

Regular cleaning of pads, proper storage, and occasional replacement of carbon brushes are typical maintenance practices.

Are all dual-action polishers compatible with different polishing pads?

Most dual-action polishers are compatible with a variety of pads.

Is it necessary to use different speeds for various polishing tasks?

Yes, different speeds are recommended for various tasks. Lower speeds for spreading product and higher speeds for polishing and correcting paint imperfections.

Can dual-action polishers be used for paint correction?

Yes, dual-action polishers can perform paint correction by removing swirl marks, light scratches, and other minor imperfections.

What safety precautions should I take when using a dual-action polisher?

Wear appropriate safety gear (like goggles and a mask), start with a lower speed, and keep the polisher moving to avoid heat buildup and damage to the paint.

Can dual-action polishers be used by both professionals and beginners?

Yes, dual-action polishers are suitable for both professionals and beginners due to their safer and user-friendly nature.

Are there specific techniques to achieve the best results with a dual-action polisher?

Yes, techniques like proper pad and product selection, keeping the machine moving, applying even pressure, and working in sections are crucial for achieving the best results with a dual-action polisher. Practice and experience refine these techniques.

1 year warranty MaxShine - Best detailing Polishers and Buffers

MaxShine Dual Action Polishers and Buffers Warranty:

Included in the purchase of a MaxShine Dual Action Polisher or Rotary Machine is a 1-year mechanical warranty, from purchase date. Exclusions include but are not limited to dismantled equipment, normal wear and tear, improper use and not following standard operational instructions.

MaxShine Guarantee

As of September 1st, 2023, MAXSHINE will maintain, repair or replace any defective tool, due to faulty materials or workmanship for the lifetime of the warranty. Subject to certain exclusions below. Receipts are required for all warranty claims. MaxShine does not cover shipping cost for repairs.

*To efficiently process a claim under warranty please keep a copy of the proof of purchase with the MaxShine product name, business name where purchased, and the purchase date.