Brand Comparison

ACDelco Torque Wrenches Reviewed

Finding the right level of torque is essential when completing automotive work. Evaluate your options with this review of the best ACDelco brand torque wrenches.

Torque wrenches are used to tighten nuts and bolts to a specific value. Finding the right level torque is essential when accomplishing automotive work. However, it isn't always easy to find the best ACDelco torque wrench. That's why we've put together this ACDelco torque wrench review to evaluate your options.


Preview

Product

Torque Range

Drive Sizes

Check Price

ACDelco Tools 1/2” (Inch) Angle Digital...

ACDelco Tools

ARM303-4A

12.5-250.7 ft-lbs.

1/2"

ACDelco ARM601-4 1/2' Digital Torque Wrench...

ACDelco Tools

ARM601-4

4-99 ft-lbs.

1/2"

ACDelco ARM601-3 3/8” (3.7 to 37 ft-lbs.)...

ACDelco Tools

ARM601-3

2-37 ft-lbs.

3/8"

ACDelco Tools 3/4” (Inch) Heavy Duty,...

ACDelco Tools

 ARM321-6A

73.8-738 ft-lbs.

3/4"

ACDelco Tools 1” (Inch) Heavy Duty,...

ACDelco Tools

ARM323-8A

73.8-738 ft-lbs.

1"


Why Choose ACDelco?

ACDelco has been in business for more than 100 years. Plus, the parts made are meant to be OEM, meaning that they are comparable to the original equipment. Many of the ACDelco parts are used for GM vehicles, such as Chevrolet, Cadillac, GMC, and Buick. If you want a high-quality brand, these torque wrenches should provide what you are looking for. 


Key Features Of ACDelco Torque Wrenches

Professional Grade Material Quality

ACDelco is known for creating parts that are built with high-end materials. If you want a tool that's going to last, you need an ACDelco torque wrench.

Digital Display/Backlight Display

The ACDelco digital torque wrench contains an easy to read display. Some models have a backlight display, which makes it simple to read in low-light situations.

Visual & Audible Alerts

When the desired torque is reached, you can count on the audible and visual alerts that keep you from applying too much torque to your bolts.

Built-In Memory Logs

Quickly see the last torque values that you have reached. Several torque wrench models offer memory logs containing a specified number of previous values.

4 Unit Measurements

You don't have to use a torque wrench simply in foot-pounds but can also take advantage of one of the other measurements from ACDelco.

Anti-Slip Soft Grip

For mechanics that spend a lot of time holding the torque wrench, it's vital to have an anti-slip soft grip that's comfortable to hold.

Calibration Mode

It's wise to calibrate the torque wrench once a year. With the calibration mode, this task is easier than ever to perform.

Angle Measuring

You can also measure angles with some torque wrenches, but there aren't many on the market that are as reliable as ACDelco tools.

High Accuracy Rating

ACDelco torque wrenches come with a high accuracy rate. In fact, some models boast of being accurate up to +/-1.5%.

Auto Shutoff Feature

When you stop using the torque wrench but forget to turn it off, it's helpful to have the auto-shutoff feature that helps save the battery life.

Warranty

ACDelco provides a one-year warranty against manufacturer defects. However, as you will see through ACDelco digital torque wrench review, most people never have trouble with defects.


5 Best ACDelco Torque Wrenches Reviewed

1. ACDelco Tools ARM303-4A

Best ACDelco Torque Wrench

Torque Range

12.5-250.7 ft-lbs.

Drive Sizes

1/2"

Accuracy

+/- 1.5%

Measurement Options

N-m, Kg-cm, In-lb., Ft-lb.

With Angle

Yes

This ACDelco 1/2 digital torque wrench is reversible and features a precision-geared 72-tooth ratchet head. You can use it to apply torque both clockwise and counter-clockwise. Plus, the tool itself features an anti-slip industrial-grade grip design. If you are someone that holds your tools for extended periods, this design will keep your hand from getting tired. This wrench also applies between 12.5 and 250.7 ft-lbs. of torque and is said to be +/- 1.5% accurate.

Additionally, it is an ACDelco angle torque wrench that reads angles. This additional capability does increase the price slightly. Plus, it comes with an easy-to-read LCD display that shows the measurement mode, angle degree, battery level, and torque setting. Show the measurements in four different modes: N-m, Kg-cm, In-lb. and Ft-lb.

The ACDelco torque wrench is made with a hardened steel alloy body and comes with a protective full metal case that contains high-density foam. You will also be grateful for the buzzer, LED light flashing and vibration that let you know when the desired torque is reached. We recommend this torque wrench for professional mechanics or home enthusiasts that don't mind spending more for quality. This tool is designed to last and provide some of the most accurate results with the additional capability to read angle measurements.

Pros

  • Accurate
  • Durable construction
  • Includes angle measurement
  • Includes protective case

Cons

  • More expensive

2. ACDelco Tools ARM601-4

Best ACDelco 1/2 Digital Torque Wrench

Torque Range

4-99 ft-lbs.

Drive Sizes

1/2"

Accuracy

+/- 2%

Measurement Options

N-m, Kg-cm, In-lb., Ft-lb.

With Angle

No

If you don't need as much capability, this ACDelco ARM601-4 1/2 digital torque wrench review might prove helpful. It applies torque between 4 and 99 ft-lbs. Plus, it also has a flashing LED light and buzzing alarm to alert you once the desired torque is reached. Again, you can read the measurements in kg-cm, N-m, in-lb. and ft-lb.

With this torque wrench, you can utilize multiple settings. Choose from the mode settings, Peak & Trace, measurement, and torque. The guaranteed accuracy range on this model is +/- 2%, ensuring the perfect balance between value and performance. Additionally, the grip is comfortable to hold, especially after longer periods. If you have tough projects ahead of you, you will find that this is enjoyable to use.

As with the other ACDelco wrenches, this model comes with a one-year warranty. However, you won't likely deal with any defects, as shown through the exceptional customer reviews. If you don't require a wrench for heavy-duty applications, this model is perfect for your everyday jobs. On the other hand, it isn't a model that will apply more than 99 ft-lbs. of torque, which might require an upgrade to a more capable model down the road.

Pros

  • Accurate
  • Durable construction
  • Reasonable cost
  • Anti-slip grip

Cons

  • Less capable than other models

3. ACDelco Tools ARM601-3

Best ACDelco Digital Torque Wrench 3/8

Torque Range

2-37 ft-lbs.

Drive Sizes

3/8"

Accuracy

+/- 2%

Measurement Options

N-m, Kg-cm, In-lb., Ft-lb.

With Angle

No

Instead of using an ACDelco digital torque wrench adapter, you can purchase the wrench itself for a minimal amount of money. This 3/8" torque wrench applies between 2 and 37 foot-pounds of torque, which is more than enough for your smaller projects. As with the other options, this model features an LED flashing light and buzzer alarm to tell you when the desired torque has been reached. Additionally, the measurements can be read on the LCD display through kg-cm, N-m, in-lb. and ft-lb.

Pick from multiple settings, including measurement, torque, mode, plus Peak & Trace. When applying clockwise force, you are guaranteed a +/- 2% accuracy range, which is exceptional considering the lower price point. This model also features the anti-slip grip that keeps your hand comfortable during longer projects.

With the durable construction, you have nothing to worry about, but the company still offers a one-year warranty to ensure further protection. The existing customer reviews show that this is one of the top choices. However, it isn't capable enough for all people. If you need a torque wrench that provides more force, you will want to look at a more capable model from our other reviews. This one is designed for light-duty projects only.

Pros

  • Accurate
  • Strong materials
  • Reasonable cost
  • Easy to read LCD display

Cons

  • Light-duty applications only

4. ACDelco Tools ARM321-6A

Best ACDelco 3/4 Digital Torque Wrench

Torque Range

73.8-738 ft-lbs.

Drive Sizes

3/4"

Accuracy

+/- 1.5%

Measurement Options

N-m, Kg-cm, In-lb., Ft-lb.

With Angle

Yes

If you need something for heavy-duty work, the ARM321-6A is a much better choice. This 3/4" torque wrench doesn't just handle more, but it also features an extended length of 48-5/8". There are also thirty data sets of measurement settings, mode settings, and torque settings to choose from. With this tool, you can apply 73.8 to 738 ft-lbs. of torque at an astounding accuracy of +/- 1.5%.

Use the handy LCD display to read battery level, torque setting, angle degree, or measurement modes. In fact, there are four measurement modes to choose from: N-m or kg-cm, In-lb., ft-lb. When you reach the desired torque value, there will be both an audible and visual alert through the buzzer, flashing LED light, and vibration.

Not only is this wrench designed to handle a tough load, but it is made to last. You will receive a precision-geared 72-tooth ratchet head that works in both clockwise and counter-clockwise directions. Plus, it is constructed from hardened steel alloy and comes with a protective full metal case. Additionally, the anti-slip industrial-grade grip design makes it simple to hold onto, even during more intensive projects. However, not everyone needs this much capability or wants to spend this much money.

Pros

  • Heavy-duty applications
  • Durable construction
  • Anti-slip grip
  • Easy to read LCD display

Cons

  • Expensive

5. ACDelco Tools ARM323-8A

Best ACDelco 1" Digital Torque Wrench

Torque Range

73.8-738 ft-lbs.

Drive Sizes

1"

Accuracy

+/- 1.5%

Measurement Options

N-m, Kg-cm, In-lb., Ft-lb.

With Angle

No

If you are working on heavy-duty trucks or industrial equipment, you are going to need the most capability available. That's when you look at the 1" torque wrench options. This choice from ACDelco is a top-of-the-line model and features an extended length of 48-13/16". With this heavy-duty performance, you get the smooth and precise movement you are looking for, at +/- 1.5% accuracy. In total, expect to apply torque between 73.8 and 738 ft-lbs.

The easy to read LCD shows you the torque settings, measurement modes, and battery level. Choose from four measurement modes: N-m or kg-cm, In-lb. and ft-lb. Once the desired torque value is reached, you get both visual and audible alerts through the flashing LED light, vibration, and buzzer. 

Because you are working on heavy equipment, you want to know that the tool is going to last. Thankfully, ACDelco made this wrench with a precision-geared 72-tooth ratchet head that can be used both clockwise and counter-clockwise. It is also constructed out of hardened steel alloy that is built to last many years. Plus, it comes with a protective full-metal case that offers more security when the tool is not in use. With the anti-slip industrial-grade grip, you won't have trouble holding onto your tool over an extended period.

Pros

  • Heavy-duty applications
  • Strong construction
  • Anti-slip grip
  • Numerous measurement modes

Cons

  • Expensive

ACDelco Torque Wrench Sizes Available

When it comes to choosing the right size torque wrench, you have several to choose from. ACDelco offers a wide range, including:

  • Sizes: 1/4", 3/8", 1/2", 3/4" & 1"

To determine which is best for you, it's vital to look at the work you plan to do. For more mechanics and automotive enthusiasts, the ½" wrench is more than what you will need. The larger torque wrenches are meant for heavy-duty applications.


How To Use ACDelco Torque Wrenches

If you aren't familiar with how to use a torque wrench, it doesn't take long to learn.

  • Set the appropriate torque value to your wrench.
  • Turn the nut by hand until the threads catch.
  • Tighten the nut or bolt with your torque wrench.
  • Stop turning when you are notified that the desired value has been reached.

It also helps to watch this instructional video.


People Also Ask (FAQs)

How much does it cost to re-calibrate an ACDelco torque wrench? How often should it be done?

If you have your torque wrench re-calibrated professionally, it can cost anywhere from $50 to $200, depending on the model you own. This calibration should be performed yearly, or every 5,000 uses.

How accurate are ACDelco torque wrenches?

ACDelco creates some of the most accurate torque wrenches on the market. Some of the models listed above have an accuracy of +/- 1.5%.

How do ACDelco torque wrenches compare to torque wrenches from other brands? Who makes the best one?

ACDelco is among the top brands that sell torque wrenches and are regularly trusted by mechanics.

How long do ACDelco torque wrenches last?

The company puts a one-year warranty on the torque wrenches, but they are built to last a lifetime if properly cared for.

What are the best ACDelco torque wrench adapters?

The ACDelco torque wrench adapter allows you to turn a ratchet into a torque wrench. If you are looking for a model from ACDelco, consider these two options.


Conclusion

We recommend the ACDelco Tools 1/2" ARM303-4A for most automotive enthusiasts and mechanics. It's durable, extremely accurate, and features many additional aspects that the budget-friendly models don't have. You will spend more to own this torque wrench, but the added functionality makes it worthwhile.

Top