Torque Multipliers

Harriet Perez
16 min readApr 12, 2024



Are you looking to enhance your vehicle’s performance or make your garage look even more impressive? Look no further than the Torque Multiplier — our roundup of the latest and greatest torque multipliers on the market. These innovative devices are engineered to boost your car’s performance and provide a sleek, stylish touch to your ride. Dive into our article and discover the top torque multipliers that stand out among the competition.

The Top 10 Best Torque Multipliers

  1. Heavy Duty Torque Multiplier Socket Set — 4PS Black Labor Saving Tools — Experience labor-saving efficiency with the Heavy Duty Torque Multiplier Set, featuring 4PS sockets and a sleek black design to tackle all your demanding bolting tasks.
  2. Revolutionary Torque Multiplier for Effortless Tire Adjustment — The Tool Luxe Torque Multiplier for Tires offers an efficient solution for loosening lug nuts and car tires, saving you energy and eliminating the need for an air compressor.
  3. High-Quality Multi-torque MP300 Torque Multiplier — Stahlwille’s MP300 Multipower Torque Multiplier offers exceptional overload protection, precise planetary gears, and a convenient carrying case for optimal performance.
  4. High-Performance 10000 NM Torque Multiplier for Bridgebuilding and Bolting Applications — Experience 10000Nm of torque with the Gedore DVV-100ZRS Torque Multiplier, featuring a Z-Form reaction plate, 28.5 gear ratio, and a high-performance aluminum build for versatile heavy-duty applications.
  5. Wright Tool 9S394 Precision Torque Multiplier Plate — Experience unbeatable precision and durability with Wright Tool Company’s Torque Multiplier — Plate (9S394), known for its long-lasting performance and adherence to ASME Standards.
  6. Dr. Norbar 25:1 Torque Multiplier — Precision 2,500 Ft Lbs & 3,400 Nm Torquing Tool — The Norbar 16092 HT6/25 AWUR is a top-quality torque multiplier, featuring a robust 25:1 ratio and anti-wind-up ratchet system for precise torque monitoring, making it an indispensable tool for professionals.
  7. Keen Torque Multiplier: 3:1 Torque Conversion and Adjustable Range for Enhanced Strength — The Keen Torque Multiplier empowers you to effortlessly increase your torque range, making your tasks easier with its 3:1 conversion and accurate +/- 6% accuracy.
  8. HG-80 Manual Torque Multiplier for High-Torque Applications — The Mountz HG-80 Manual Torque Multiplier, model 213709, is a powerful tool that offers high torque output with minimal input, making it ideal for situations where air and electricity are not readily available.
  9. 2-Piece Torque Multiplier Lug Nut Remover for Efficient Car Maintenance — Save time and effort with this heavy-duty torque multiplier wrench, designed for efficient lug nut removal on car and truck tires, featuring 5000 Nm torque output and a 1:58 trans-speed ratio.
  10. Proto Torque J6212 Heavy-Duty Torque Multiplier — Experience the Proto Torque Multiplier J6212, a versatile and highly precise single stage planetary gear system that’s perfect for use with torque wrenches and heavy-duty power or impact sockets, ensuring ultimate torque accuracy and efficiency.

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Heavy Duty Torque Multiplier Socket Set — 4PS Black Labor Saving Tools

Heavy Duty Torque Multiplier Socket Set - 4PS Black Labor Saving Tools | Image

Imagine you’re working on a car in your garage, and you need a wrench to tighten a stubborn nut. You can’t hold the wrench for too long without straining, and you need more precision than just using your hand. That’s where the Heavy Duty Torque Multiplier Set comes in handy.

This wrench set is a real savior when it comes to labor-intensive tasks. Its design allows you to generate more torque with less effort, perfect for those tricky nuts and bolts that require some extra force. The 4PS sockets in the set are sturdy and offer a firm grip, reducing the risk of slippage and making your job a whole lot easier.

One feature that stands out is the black finish, which not only looks sleek but also protects the metal from rust and corrosion. The torque multiplier mechanism works like a charm, taking the strain off your hands and helping you achieve the perfect tightness every time.

However, it’s not all smooth sailing. The wrench set can be a bit heavy for some users, making it less than ideal for smaller hands or delicate tasks. Additionally, you might find that the sockets don’t always fit perfectly, requiring some adjustment before you can use them effectively.

In conclusion, the Heavy Duty Torque Multiplier Set is a powerful and versatile tool that can save you time and effort when tackling those tricky jobs around the house or garage. While it may not be perfect for everyone, it’s certainly worth considering if you’re in the market for a sturdy and reliable wrench set.

Revolutionary Torque Multiplier for Effortless Tire Adjustment

Revolutionary Torque Multiplier for Effortless Tire Adjustment | Image

I recently tried out the Tool Luxe Torque Multiplier for Tires, and let me tell you, it was a game changer for my tires. As a car owner, I’ve struggled with loosening lug nuts or car tires with just my simple wrench, but this Torque Multiplier made the process so much easier.

One of the highlights for me was the gear ratio of 1:18. It truly made a big difference in the amount of effort I had to put into it. I no longer needed to use a compressor or struggle to reach the desired output torque without impact. This tool really saved me a lot of time and effort during tire rotations.

However, the storage case included with the multiplier was a bit disappointing. It wasn’t as sturdy as I would have liked, and sometimes, the multiplier would fall out when I was carrying it around. This could be improved for a better overall experience.

Overall, the Tool Luxe Torque Multiplier for Tires made a noticeable difference in my tire-changing routine. I appreciate the ease of use and the reduction in muscle strain. Despite the storage case issue, I would still highly recommend this product for anyone looking to make their tire-changing process easier.

High-Quality Multi-torque MP300 Torque Multiplier

High-Quality Multi-torque MP300 Torque Multiplier | Image

I recently had the opportunity to use the Stahlwille MP300 Multipower Torque Multiplier in my daily work. This robust tool, with its overload protection, has proven to be a valuable addition to my toolbox. The planetary gears provide smooth and precise operation, making it a delight to use.

One of the most impressive features of the MP300 is its torque range, which has made it an essential tool for various applications. The 229–800 Nm range is quite impressive, allowing me to cover a wide range of tasks with ease.

However, there are a couple of things to consider. The drive connector size being 1/2 inches might limit its compatibility with some tools, which could be a downside for some users. Another minor issue is the deviation of indication, which can be up to ± 5%.

Overall, the Stahlwille MP300 Multipower Torque Multiplier is a solid and reliable tool that has proven its worth in my daily routine. With its overload protection and wide torque range, it has become a go-to device for many of my tasks.

High-Performance 10000 NM Torque Multiplier for Bridgebuilding and Bolting Applications

High-Performance 10000 NM Torque Multiplier for Bridgebuilding and Bolting Applications | Image

The Gedore DVV-100ZRS Torque Multiplier is a powerful tool designed for bridgebuilding and bolting applications. With a rated output of 7,330 ft. -lb, this multiplier offers an impressive torque rating. The gear ratio of 1:28.5 ensures precise and consistent results, while the self-contained antibacklash device ensures smooth operation.

The handle length of 8–1/2 inches provides a comfortable grip, and the 5-degree increments on the angle of turn protractor allow for precise measurements. The Z-form reaction plate with slave drive system offers reliable overload protection, and the high-performance aluminum material ensures durability. Despite being a professional-grade tool, the Gedore DVV-100ZRS Torque Multiplier is surprisingly user-friendly and easy to use.

Wright Tool 9S394 Precision Torque Multiplier Plate

Wright Tool 9S394 Precision Torque Multiplier Plate | Image

The Wright Tool Torque Multiplier — Plate (9S394) is a remarkable addition to any tool collection, featuring a smooth and sturdy input and output. Wright Tool, known for their high-quality hand tools since 1927, ensures the longevity and durability of their products through the use of Wright Alloy Steel, precise heat treatment, and advanced manufacturing techniques. This particular multiplier is designed to meet ASME Standards for its category.

One of the most appealing aspects of this Torque Multiplier is its impressive input capacity of 189 ft-lbs, which is coupled with a solid 1/2" square input internal drive. On the other hand, the output capacity boasts 5000 ft-lbs, complemented by a robust 1–1/2" square output external drive. These numbers showcase the tool’s impressive torque ratio of 26.5:1, making it an exceptional choice for various applications.

However, the one con about this tool is the lack of user reviews at the moment. As such, it is difficult to ascertain its long-term performance and user satisfaction, which could be a potential concern for some consumers. Overall, the Wright Tool Torque Multiplier — Plate (9S394) offers a reliable and robust solution for those seeking a top-tier torque multiplier.

Dr. Norbar 25:1 Torque Multiplier — Precision 2,500 Ft Lbs & 3,400 Nm Torquing Tool

Dr. Norbar 25:1 Torque Multiplier - Precision 2,500 Ft Lbs & 3,400 Nm Torquing Tool | Image

Norbar’s 25:1 Torque Multiplier (model 16092) has been a game changer in my workshop. This tool uses multiple stages of epicyclic gearing to deliver an impressive 2,500 Ft Lbs, or 3,400 Nm, of torque. The Anti Wind-Up Ratchet system adds a layer of safety, preventing my torque wrench from accidentally slipping.

One of the standout features of this tool is the electronic torque transducers that provide precise torque monitoring. Norbar guarantees true torque multiplication better than +/-4%, which makes it a reliable choice for my tasks. Its high ratios allow for the use of a small torque wrench and can be utilized even in tight spaces.

While the 16092 may be a bit heavier than other models on the market, the additional weight provides stability during long and intensive tasks. With a plate weight of 2.5 kg and a plate torque of 19 Nm, it offers a balance between power and precision.

Overall, the Norbar 16092 is a sturdy and efficient tool that has greatly improved my workflow in the workshop.

Keen Torque Multiplier: 3:1 Torque Conversion and Adjustable Range for Enhanced Strength

Keen Torque Multiplier: 3:1 Torque Conversion and Adjustable Range for Enhanced Strength | Image

The Keen Torque Multiplier is a handy tool that significantly reduces the required strength when working with torque wrenches. Its 3:1 conversion rate allows users to easily tighten or loosen bolts with less effort. The 730 ft-lbs. input provides an output of 2200 ft-lbs. , providing a broader range of torque options. The accuracy rating of +/- 6% ensures precise results.

However, the Multiplier’s dimension may pose a challenge for some users due to its 19.5-inch length and 6.5-inch body length. Another potential drawback is its weight- the device weighs 16.65 lbs, which could be a bit heavy for extended use. On the bright side, it does come with a convenient plastic carrying case that’s designed for easy storage and transportation. Despite these minor shortcomings, the Keen Torque Multiplier proves to be a valuable addition to any toolkit, efficiently converting low torque into high torque with ease.

HG-80 Manual Torque Multiplier for High-Torque Applications

HG-80 Manual Torque Multiplier for High-Torque Applications | Image

I recently had the opportunity to use the Mountz HG-80 Manual Torque Multiplier in my workshop, and I was thoroughly impressed by its performance. This tool is perfect for tight spaces where electricity and air aren’t easily accessible, making it a versatile option for various projects. The gearing design allows for a high torque output with minimal input, which makes it incredibly efficient.

One of the standout features of this model is its incredible torque multiplication — a whopping 126:1! This means you can apply a significant amount of torque with very little effort. The gear ratio of 180 D2 is also impressive, as it ensures a smooth and precise operation every time.

The only downside I found was the weight of the tool, coming in at 128 lbs. This might make it less ideal for those who need a more portable option. However, for users who require high torque in their applications, the HG-80 Torque Multiplier is an excellent choice.

2-Piece Torque Multiplier Lug Nut Remover for Efficient Car Maintenance

2-Piece Torque Multiplier Lug Nut Remover for Efficient Car Maintenance | Image

I’ve had my fair share of frustrating experiences when it comes to lug nuts, especially when dealing with larger vehicles or multiple tires. But that all changed when I came across this handy 2 PC HD Torque Multiplier Labor Saving Wrench Lug Nut Remover. The name may be a mouthful, but this little wrench packs a serious punch when it comes to making lug nuts much easier to remove.

What stood out immediately was its heavy-duty construction. It’s made of 40Cr 500cc BD-58D-B material, which gives it a reassuring sturdiness that can handle even the toughest of tasks. One of the key highlights was its ability to deliver 5000 Nm torque output — that’s some serious muscle!

Another great feature is the trans-speed ratio of 1:58, which makes the operation much smoother and quicker. And let’s not forget about the 1'’ drive square — perfect for those of us with bigger hands or for those who prefer a sturdy grip. This wrench also comes in a powder-coated finish, adding a touch of style and durability.

However, this labor-saving wrench isn’t without its drawbacks. Its size and weight might make it less suitable for more frequent, light-duty tasks. And while the two sockets (32mm and 33mm) should cover most car and truck tires, there might be situations where a different size would be more helpful.

Overall, if you’re someone who spends a lot of time working on cars or trucks, then this Torque Multiplier Wrench will undoubtedly come in handy. It may have a few quirks, but its pros surely outweigh the cons, making it an invaluable addition to any toolbox.

Proto Torque J6212 Heavy-Duty Torque Multiplier

Proto Torque J6212 Heavy-Duty Torque Multiplier | Image

The Proto Torque Multiplier J6212 is a versatile tool designed to streamline your torqueing tasks. With a single-stage planetary gear system, it ensures precise and accurate measurement. Its tubular reaction bar adds stability to the unit, making it a reliable choice for torque wrenches and heavy-duty power or impact sockets.

However, it’s worth mentioning that this multiplying torque tool is not compatible with power drive tools. The dimensions of the J6212 measure 17.25 inches by 13.5 inches by 5.31 inches, making it a bit bulky.

Despite its size, this device comes with a plastic case for storage and is durable enough to last several generations. Weighing in at 13.36 pounds, it may not be the lightest tool but can withstand the rigors of demanding tasks.

The multiplier’s torque range extends from 1200 ft-lbs. , providing a wide range for various applications. Users have given it high praise, with an average rating of 5 stars out of 5. They appreciate its performance, build quality, and the fact that it’s made in the USA.

Buyer’s Guide

Welcome to our Torque Multiplier buyer’s guide. In this section, we will discuss the key features, considerations, and general advice when looking for a torque multiplier. This guide serves as a helpful resource for anyone interested in this product category, without narrowing down to specific product picks or external resources.


Important Features of Torque Multipliers

A good torque multiplier should have the following features to ensure accuracy and reliability in measuring torque on various applications. 1. High Accuracy: Look for a torque multiplier that provides precise and accurate measurements. Calibration and adjustable settings are essential for maintaining accuracy over time. 2. Wide Range: Choose torque multipliers with a wide range to cover diverse applications and needs. 3. Durable Construction: Select torque multipliers with a robust and sturdy build to withstand harsh working conditions. 4. Easy to Use: Consider user-friendly interfaces and controls, making it easy for operators to use and navigate.

Considerations When Choosing a Torque Multiplier

There are several factors to consider when selecting a torque multiplier to ensure that it meets your requirements and expectations. 1. Application: Determine the specific application where the torque multiplier will be used. Knowing the application will help you choose the appropriate range and accuracy level for the multiplier. 2. Compatibility: Check for compatibility with existing equipment and systems to make sure the torque multiplier is a perfect fit. 3. Calibration: Look for a torque multiplier that offers easy and convenient calibration for maintaining accurate measurements. 4. Ease of Use: Consider user-friendly features, such as an intuitive interface, and controls that are easy to operate.


General Advice for Using and Maintaining Torque Multipliers

To get the most out of your torque multiplier, follow these general tips for using and maintaining the device:

  1. Proper Calibration: Regularly calibrate the torque multiplier to maintain its accuracy and ensure the measurements are reliable. 2. Cleaning: Keep the torque multiplier clean to prevent contamination and maintain its operational efficiency. Refer to the manufacturer’s instructions for proper cleaning methods. 3. Storage: Store the torque multiplier in a dry and secure location when not in use to protect from damage or environmental factors. 4. Training: Ensure that operators are well-trained in using the torque multiplier and understand its features, operation, and maintenance requirements.

A good torque multiplier is an essential tool for professionals and enthusiasts working with torque measurement applications. By considering important features, factors, and advice provided in this guide, you will be better equipped to choose the right torque multiplier for your needs and ensure accurate measurements in your projects.



What is a Torque Multiplier?

A torque multiplier is a device used to increase the torque or rotational force in a mechanical system. It achieves this by engaging gears or other mechanical components that work together to amplify the rotational force applied to a system. They are often used in applications such as industrial equipment, aerospace engineering, and automotive testing to improve performance and accuracy of measurements.

These devices are versatile and can be used in various types of equipment for a wide range of tasks. They are typically compact, lightweight, and easy to install, making them an attractive option for many professionals and enthusiasts who require improved torque control and accuracy in their work. For more detailed information on the specific applications and advantages of torque multipliers, consult the product guidelines and user manuals provided with each model.

How does a Torque Multiplier work?

A torque multiplier works by transmitting and amplifying the torque applied to it. It has a set of gears or mechanical components arranged in such a way that the torque is transferred and magnified as it passes through the system. When a rotational force is applied to the input of the torque multiplier, it is converted into a higher torque output at the output.

The primary components of a torque multiplier include an input shaft, a series of gears or mechanical components, and an output shaft. The gears or components are arranged in a specific configuration that ensures the output torque is amplified, depending on the gear ratio of the system. This process can also help stabilize and control measurements by reducing the effects of human error and environmental factors on the system.


What are the benefits of using a Torque Multiplier?

There are numerous advantages to using a torque multiplier in various applications. Some of the key benefits include improved accuracy and consistency in measurements, increased precision during calibration and testing, and enhanced safety when working with high torque loads. They can also help prolong the life of mechanical components and equipment by reducing the wear and tear caused by repetitive torque actions.

By using a torque multiplier, professionals and enthusiasts can achieve more reliable and accurate results in their work. They also provide an added layer of safety to help prevent accidents and injuries that might result from working with high torque loads without proper protection. Overall, a torque multiplier is an essential tool for many professionals and enthusiasts working in industries such as automotive, aerospace, and engineering.

What types of applications can benefit from using a Torque Multiplier?

Torque multipliers are used in a variety of applications, such as assembly and production lines, automotive and aerospace testing, wind and solar energy systems, and research and development. For example, in automotive testing, they are used to develop and test engines, drivetrains, and suspension systems to ensure optimal performance and longevity. In aerospace engineering, they play a critical role in testing and calibrating aircraft engines and engine components, contributing to overall safety and efficiency.

In addition, in renewable energy sectors like wind and solar power, torque multipliers are utilized to improve the accuracy and efficiency of equipment that generates and captures energy. They help maintain optimal performance of turbines and solar panels, ensuring higher energy production and more reliable systems. When integrated with other sophisticated equipment and tools, torque multipliers can significantly enhance the capabilities and results of a wide range of applications.


How accurate are Torque Multipliers?

The accuracy of a torque multiplier can vary depending on the specific model and the application it is being used for. Generally, the accuracy of a torque multiplier is determined by the precision with which it is manufactured and calibrated. High-quality torque multipliers are custom-engineered to meet specific accuracy requirements and can achieve accuracy levels well within the range of 1% or less.

It is essential to use torque multipliers for their intended application and to follow the manufacturer’s guidelines for proper use and calibration. Periodic maintenance and calibration help ensure that the torque multiplier remains accurate and maintains its performance over time. Additionally, using the correct calibration and measuring equipment in conjunction with the torque multiplier can further enhance the accuracy of the results obtained from your torque measurements.

What makes Torque Multipliers durable?

Torque multipliers are made to withstand various environmental factors and high-force conditions. They are typically constructed with materials such as steel and other high-strength alloys, providing them with the necessary durability and strength to withstand the constant torque and pressure experienced during operation.

Other factors contributing to the durability of torque multipliers include precise manufacturing techniques, robust designs, and protective coatings or sealants that protect internal components from corrosion and wear. Regular maintenance and replacement of worn or damaged parts, as recommended by the manufacturer, can further extend the lifespan and ensure optimal performance of the torque multiplier over time.

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