To see product details, add this item to your cart. You can always remove it later.
FREE Returns
Added to

Sorry, there was a problem.

There was an error retrieving your Wish Lists. Please try again.

Sorry, there was a problem.

List unavailable.
Other Sellers on Amazon
Added
Sold by: ACDelco Tools 🛠️
Sold by: ACDelco Tools 🛠️
(2695 ratings)
99% positive over last 12 months
Shipping rates and Return policy

ACDelco ARM602-4A 1/2” (25 to 250 ft-lbs.) Heavy Duty Digital Torque Adapter with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration

4.4 4.4 out of 5 stars 645 ratings

To see product details, add this item to your cart. You can always remove it later.
FREE Returns

Purchase options and add-ons

Brand ACDelco Tools
Material Plastic
Item Weight 0.01 Kilograms

Frequently bought together

$79.99
Get it as soon as Sunday, Mar 31
In Stock
Sold by ACDelco Tools 🛠️ and ships from Amazon Fulfillment.
Total price:
To see our price, add these items to your cart.
Details
Added to Cart
These items are shipped from and sold by different sellers.
Choose items to buy together.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Package Dimensions ‏ : ‎ 8.7 x 3.9 x 3.03 inches; 0.35 ounces
  • Item model number ‏ : ‎ ARM602-4A
  • Batteries ‏ : ‎ 2 CR2 batteries required. (included)
  • Date First Available ‏ : ‎ June 18, 2018
  • Manufacturer ‏ : ‎ ACDelco Tools
  • ASIN ‏ : ‎ B07DV33XJ5
  • Customer Reviews:
    4.4 4.4 out of 5 stars 645 ratings

Product Description

The ACDelco Brand has been around well over 100 years and its name has become synonymous with quality & reliability. ACDelco power tools are built for people who make a living with their tools, day in and day out, and require exceptional sturdiness and reliability.

ACDelco offers the most complete line of digital torque wrenches and adapters for professionals who require high precision measurement on torque (ft-lbs./Nm) and angle degree for their job. Please use selection guides to choose the right digital torque wrench with the right torque range for your application.

FEATURES

  • Static torque measurement
  • Standard functions: torque setting, measurement setting, mode setting
  • Operation in both clockwise and counterclockwise directions
  • LCD display shows N-m (or kg-cm, in-lbs., ft-lbs.) measurements
  • Audible torque confirmation by means of buzzer


Specifications


- Model Number: ARM602-4A
- Head Size: 1/2"
- Torque Range: (25 to 250 ft-lbs.)
- Tool Weight: 0.44 lbs. (0.2 kg)
- Battery: 2-coin batteries (CR2032 - included)


From the manufacturer

ARM602 IN ACTION

Most Complete Line Of Digital Torque Adaptor For The Pros

ARM familiy

ARM3xx/6xx Family

acdelco logo
How To Choose The Right Digital Torque Adaptor

  • Drive size (obvious)
  • Torque range that fits your applications. Choose one where your typical application torques falls into the mid/higher part of the range.
  • Accuracy rating: applies from 20% to 100% of max. torque. e.g. Torque range of 10~100 ft-lbs will have stated accuracy rating between 20~100 ft-lbs
  • Is calibration mode needed to ensure accuracy?
  • Is angle measurements needed ? (feature available on ARM3xx Torque Wrench)

ACDelco Digital Torque Wrench Family

Most Complete Line For The Pros

When it comes to precise & professional fastening, ACDelco offers the most complete line of digital torque wrench products. All our digital torque wrenches/Adaptor are made with sturdy materials and calibrated in production process to ensure the best quality products will be on your hand

Torque Adaptor Key Features Includes;

  • Various drive size selection: 3/8" & 1/2"
  • Wide range of torque range fits every applications: as low as 3 ft-lbs, or as high as 250 ft-lbs
  • Professional grade features: On top of Peak/Track Modes, Calibration Mode (ARM302-4S)
  • High Accuracy: up to ±1.5%, * Accuracy rating applies from 20% to 100% of max. torque
ARM602-3 ARM302-4S ARM602-4 ARM602-4A
ARM602-3 ARM302-4S ARM602-4 ARM602-4A
Customer Reviews
4.4 out of 5 stars
688
4.4 out of 5 stars
91
4.5 out of 5 stars
1,017
4.4 out of 5 stars
645
Drive Size 3/8" 1/2" 1/2" 1/2"
Peak / Track Modes
Calibration Mode - - -
Accuracy * ±2% CW, ±3% CCW * ±1.5% CW, ±2.5% CCW * ±2% CW, ±3% CCW * ±1.5% CW, ±2.5% CCW *
Torque Range 5.9 to 59 ft-lbs 12.5 to 250.7 ft-lbs 14.8 to 147.6 ft-lbs 25 to 250 ft-lbs
Alert Types Buzzer Buzzer Buzzer Buzzer / LED

Product guides and documents

Looking for specific info?

Customer reviews

4.4 out of 5 stars
4.4 out of 5
645 global ratings

Customers say

Customers like the quality, ease of use, and accuracy of the electromechanical gauge. For example, they mention it works well, the instructions are accurate, and it's easy to use to torque various items. That said, some complain about the screen and disagree on size and value.

AI-generated from the text of customer reviews

51 customers mention41 positive10 negative

Customers like the quality of the electromechanical gauge. They mention that it does what it says it would do, and does it very well. Some say that the display works, and that it works great as a quick torque comparator. Customers also appreciate the audible alarm and the unit lights up when the set amount of torque is reached. Overall, most are happy with their purchase and recommend it to others.

"...In addition to it, the tool feels solid and compact. It has nicely rounded edges...." Read more

"...The audible alarm worked perfectly and the unit lit up when the set amount of torque was approached and reached as well...." Read more

"...This unit is robust, solid and worked flawlessly on my cargo trailer wheels...." Read more

"...Also, it works great as a quick torque comparator...." Read more

31 customers mention24 positive7 negative

Customers find the electromechanical gauge easy to use. They say it's well-made, easy to set and read in bright sunlight, and intuitive to tighten the nut slowly. Some say the instructions are accurate. Overall, customers are satisfied with the product's ease of use.

"...The instructions were very accurate as they mention that when the batteries are low, the display is difficult to read...." Read more

"...It felt very intuitive to tighten the nut slowly, with an indication it was getting closer and closer to the desired torque until it finally..." Read more

"...It is super easy to operate and uses both sight and sound to alert you when you are at torque. I would recommend it and have had no issues with mine." Read more

"This is a nice little tool. You need to spend a little time to get use to the buttons. Like the beeping on the run up to the set point." Read more

12 customers mention9 positive3 negative

Customers like the accuracy of the electromechanical gauge. They mention it's very accurate, has increased precision, and is as accurate as their expensive torque wrenches. Some say that the wrenched are more consistent and precise as advertised.

"...The pros of this device are its increased precision (which I was able to test and determine to my satisfaction against the other wrenches) and..." Read more

"Packs small, accurate, beeps instead of clicking, and is very light weight." Read more

"This is a must have in the tool box. Works great, very easy to use and accurate...." Read more

"Accurate, easy and does what it is supposed to do. I like it better than my expensive click torque wrench." Read more

4 customers mention4 positive0 negative

Customers are satisfied with the sound quality of the electromechanical gauge. They mention that the sound is loud enough, and it uses both sight and sound to alert them when they are at the correct level.

"...The sound is loud enough unless your first row to the compressor motor or Metallica's stage at a concert...." Read more

"...It is super easy to operate and uses both sight and sound to alert you when you are at torque. I would recommend it and have had no issues with mine." Read more

"...It is very easy to use as an adapter. The tone is loud enough and it was intuitive about when to stop applying torque...." Read more

"...With a digital display, led lightsand audio sound you get three layers of accuracy." Read more

13 customers mention6 positive7 negative

Customers are mixed about the size of the electromechanical gauge. Some mention it's small and accurate, while others say it'd be too large for some applications. The unit is also bulky and difficult to use in a tight space. That said, some complain about the display, which is small and not well backlit.

"Packs small, accurate, beeps instead of clicking, and is very light weight." Read more

"...Only the display has something more to be desired from. Digits are not that big on it and the display itself is somewhat recessed behind a thick..." Read more

"Fun, I do like this device for it's size and convenience...." Read more

"...The unit is kind of large for some applications and so is a 1/2 inch torque wrench head...." Read more

8 customers mention3 positive5 negative

Customers have mixed opinions about the value of the electromechanical gauge. Some say it's a great product at a good price, while others say that it failed after a year and was not worth the price.

"...with my Matco and Snap-on torque wrenches, this tool consistently shows a lower value. I won't be using it in critical situations." Read more

"East to use, great price. Includes a heavy duty protective case. It covers a wide range of torque measurements. Batteries were included." Read more

"...It was dead, money wasted that could have been spent on a better product." Read more

"This thing is garbage all it does is start with all 8s and reduce with any button you push until all four are gone then it shows three 9s and it..." Read more

6 customers mention0 positive6 negative

Customers are dissatisfied with the screen of the product. They mention that the display is very dim, small, and not well backlit. They also say that the numbers are not lit up and that they need lighting to see them better.

"...nuts when the outside temperature is around 30 degrees F. The screen goes blank...." Read more

"...One issue is that the display is very small and not well backlit; so you may have to depend on hearing the tone in many situations...." Read more

"...and the numbers began getting dimmer and dimmer until the lcd screen was just blank. I hit the power button but the lcd screen continued to be blank...." Read more

"...control, only to take it out a few months later, again with a dim screen, but even though all of the setting were responsive, no indication off of..." Read more

4 customers mention0 positive4 negative

Customers find the display of the electromechanical gauge difficult to read. They also say the readout could be clearer and the viewing angles aren't great.

"...My display was difficult to read about 10 minutes after powering on and the unit was completely dead about 5 minutes later...." Read more

"...The downside to me was the readout could be clearer, as the viewing angles aren't amazing, and figuring out how to select a setting and which..." Read more

"...All works well with the exception that the unit will NOT read below 25 ft-lbs...." Read more

"...Once it was set up, I tried to get it to work. I found the display hard to read...." Read more

You Decide What Rating We Should Give This...
3 Stars
You Decide What Rating We Should Give This...
I received this item in a timely fashion and in good condition. I have had a reason to write the seller in reference to this item and they have been very responsive to my questions.When I received this item I read the instructions and went to the garage to verify the item works as expected and to confirm I knew how to use it. All works well with the exception that the unit will NOT read below 25 ft-lbs. The instructions clearly say the alarm function can only be set to 25ft-lbs and above but that the unit will read between 4-250ft-lbs. It does not.The back of this unit say 4-250ft-lbs. The ACDelco's website says 4-250ft-lbs. This listing says 4-250ft-lbs. The unit only reads between 25-250ft-lbs.I contacted the seller who responded to say: "We do apologize as there is an error with the listing when it was updated and the item minimum reading is 25 ft-lbs which is 10% of the maximum of 250 ft-lbs. You may request a return through your Amazon account if you wish and a return label will be provided to return for a refund. We apologize for any inconvenience this may cause."I can only assume that either ACDelco changed the specification of this unit, doesn't know the specification of their own product, or this isn't a genuine ACDelco item. I frankly asked the sell if this is a genuine ACDelco item- I was assured it is.So to summarize, the unit works well. It appears to be accurate. The seller was quick to ship and answered my questions honestly and in a timely fashion. Unfortunately, one of the most appealing features of this unit, its broad operating range, appears to be inaccurate. One star for not knowing what is being made and sold. Five stars for being a good 25-250ft-lbs tool.
Thank you for your feedback
Sorry, there was an error
Sorry we couldn't load the review

Top reviews from the United States

Reviewed in the United States on June 1, 2023
One person found this helpful
Report
Reviewed in the United States on February 4, 2024
Reviewed in the United States on May 3, 2020
4 people found this helpful
Report
Reviewed in the United States on February 5, 2023
9 people found this helpful
Report
Reviewed in the United States on July 10, 2023
2 people found this helpful
Report
Reviewed in the United States on January 29, 2024
Reviewed in the United States on February 15, 2024

Top reviews from other countries

S K
5.0 out of 5 stars Accurate digital torque
Reviewed in Canada on January 21, 2021
Alexander Whitney
5.0 out of 5 stars Excellent product.
Reviewed in Canada on January 15, 2020
jennifer lockhart
1.0 out of 5 stars Received an ARM602-4 - WRONG PRODUCT DESCRIPTION
Reviewed in Canada on May 3, 2023
Customer image
jennifer lockhart
1.0 out of 5 stars Received an ARM602-4 - WRONG PRODUCT DESCRIPTION
Reviewed in Canada on May 3, 2023
Product description is - ACDelco 1/2” Digital Torque Adapter (4-250 ft-lbs) with Audible/LED Alert ARM602-4A.
I received an ARM602-4.
Images in this review
Customer image Customer image Customer image
Customer imageCustomer imageCustomer image
One person found this helpful
Report
Luke
1.0 out of 5 stars Review of description and seller only
Reviewed in Canada on January 23, 2021
2 people found this helpful
Report
Mitchell Parsons
1.0 out of 5 stars DOA
Reviewed in Canada on November 13, 2021
2 people found this helpful
Report