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ACDelco ARM601-4 1/2” (14.8 to 147.5 ft-lbs.) Heavy Duty Digital Torque Wrench with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration

4.4 4.4 out of 5 stars 1,198 ratings
$114.99 with 18 percent savings
List Price: $139.99

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Torque Wrench
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Purchase options and add-ons

Color Red
Brand ACDelco Tools
Material Metal
Item Weight 3.9 Pounds
Item Package Quantity 1

About this item

  • EASY TO USE – Our lightweight, heavy duty, and professional (14.8 to 147.5 ft-lbs.) torque digital torque wrench is engineered with high-quality materials that displays real-time torque values in ft-lbs. and Nm. An excellent tool with reliable torque values that is ideal for professionals, automotive, motor bikes, and many other industrial uses.
  • MULTI-SETTING FUNCTIONS – Torque, measurement, and Peak & Trace, Mode Settings. Torque setting range: 10% of max torque value / measuring range: 14.8 to 147.5 ft-lbs. with high accuracy of 2% clockwise 3% CCW of indicated value, CV, from 20% to 100% of full scale.
  • SUPERIOR QUALITY – Made with stellar quality that offers speed, accuracy, and an easy-to-read LCD screen that beeps when a desired torque value is achieved. Meets or exceeds ASME B107.14.14-2004, ISO 6789 standards. Individually serialized with matching certificate of calibration traceable to N.I.S.T.
  • USER-FRIENDLY – Lightweight composite housing with ergonomic soft grip handle design provides comfort for long working hours and a secure grip for maximum control and steadiness. Slim body design molded to securely fit and balance hand torque to help reduce vibration and fatigue with less wear on your hands.
› See more product details

Customer ratings by feature

Accuracy
3.9 3.9
Easy to read
3.8 3.8
Easy to use
3.8 3.8
Value for money
3.7 3.7
See all reviews

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ACDelco ARM601-4 1/2” (14.8 to 147.5 ft-lbs.) Heavy Duty Digital Torque Wrench with Buzzer and LED Flash Notification – ISO 6
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From the manufacturer

ACDelco ARM family

ARM3xx ARM6xx digital torque wrench adaptors

ACdelco logo
How To Choose The Right Digital Torque Wrench

  • 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 ?

ACDelco Digital Torque Wrench Family

Most Complete Line For The Pros

ACDelco Tools starves to create high quality tools for professionals from all industries who demands the highest quality and precision.

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

  • Various drive size selection: 1/4", 3/8", 1/2", 3/4" & 1"
  • Wide range of torque range fits every applications: as low as 1.1 ft-lbs, or as high as 738 ft-lbs
  • Professional grade features: On top of Peak/Track Modes, various models equiped with Calibration Mode , angle measuring capability & changeable drive head (on selected models)
  • High Accuracy: up to ±1.5%, * Accuracy rating applies from 20% to 100% of max. torque
ARM313-2A ARM325-2I ARM331-2I
ARM313-2A ARM325-2I ARM331-2I
Customer Reviews
4.2 out of 5 stars
60
3.6 out of 5 stars
4
4.1 out of 5 stars
8
Price $151.57 $198.99 $199.78
Drive Size 1/4" 1/4" 1/4"
Peak / Track Modes ✓ ✓ ✓
Calibration Modes ✓ ✓ ✓
Angle Measurements ✓
Interchangeable Head ✓ ✓
Accuracy * ±1.5% CW, ±2.5% CCW * ±2% CW, ±3% CCW * ±2% CW, ±3% CCW *
Torque Range 1.1 to 22.1 ft-lbs 2.2 to 22.1 ft-lbs 1.8 to 18..5 ft-lbs
Length 16-1/8" 15-7/8" 10-1/16"
Memory 30 sets data 30 sets data 30 sets data
Alert Types Buzzer / LED / Vibration Buzzer / LED / Vibration Buzzer / LED / Vibration
ARM315-3A ARM327-3I ARM601-3
ARM315-3A ARM327-3I ARM601-3
Customer Reviews
4.3 out of 5 stars
216
4.3 out of 5 stars
216
4.4 out of 5 stars
1,579
Price $139.99 $129.99 $95.99
Drive Size 3/8" 3/8" 3/8"
Peak / Track Modes ✓ ✓ ✓
Calibration Modes ✓ ✓
Angle Measurements ✓
Interchangeable Head ✓
Accuracy * ±1.5% CW, ±2.5% CCW * ±2% CW, ±3% CCW * ±2% CW, ±3% CCW *
Torque Range 5 to 99.5 ft-lbs 10 to 99.5 ft-lbs 2 to 37 ft-lbs
Length 17-1/16" 16-3/4" 12-3/8"
Memory 30 sets data 30 sets data
Alert Types Buzzer / LED / Vibration Buzzer / LED / Vibration Buzzer / LED
ARM303-4A-340 ARM317-4A ARM329-4I ARM601-4
ARM303-4A-340 ARM317-4A ARM329-4I ARM601-4
Customer Reviews
4.3 out of 5 stars
188
4.4 out of 5 stars
63
4.0 out of 5 stars
1
4.4 out of 5 stars
1,198
Price $159.99 $127.79 $381.03 $114.99
Drive Size 1/2" 1/2" 1/2" 1/2"
Peak / Track Modes ✓ ✓ ✓ ✓
Calibration Modes ✓ ✓ ✓
Angle Measurements ✓ ✓
Interchangeable Head ✓
Accuracy * ±1.5% CW, ±2.5% CCW * ±1.5% CW, ±2.5% CCW * ±2% CW, ±3% CCW * ±2% CW, +- 3% CCW*
Torque Range 12.5 to 250.7 ft-lbs 5 to 99.5 ft-lbs 14.8 to 147.5 ft-lbs 4 to 99 ft-lbs
Length 26-1/4" 17-7/8" 22" 17-5/16"
Memory 30 sets data 30 sets data 30 sets data
Alert Types Buzzer / LED / Vibration Buzzer / LED / Vibration Buzzer / LED / Vibration Buzzer / LED
ARM319-6A ARM321-6A ARM323-8A
ARM319-6A ARM321-6A ARM323-8A
See Details
Customer Reviews
—
5.0 out of 5 stars
2
5.0 out of 5 stars
2
Price $852.94 $853.73 —
Drive Size 3/4" 3/4" 1"
Peak / Track Modes ✓ ✓ ✓
Calibration Modes ✓ ✓ ✓
Angle Measurements ✓ ✓ ✓
Accuracy * ±1.5% CW, ±2.5% CCW * ±1.5% CW, ±2.5% CCW * ±1.5% CW, ±2.5% CCW *
Torque Range 44.3 to 442.8 ft-lbs 73.8 to 738 ft-lbs 73.8 to 738 ft-lbs
Length 37" 48-5/8" 48-13/16"
Memory 30 sets data 30 sets data 30 sets data
Alert Types Buzzer / LED / Vibration Buzzer / LED / Vibration Buzzer / LED / Vibration

Product information

Technical Details

Additional Information

Warranty & Support

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ACDelco

ACDelco ARM601-4 1/2” (14.8 to 147.5 ft-lbs.) Heavy Duty Digital Torque Wrench with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration

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Product guides and documents

User Manual (PDF)

Product Description

The Torque Wrench Is Probably One Of The Most Used Specialty Tools When It Comes To Automotive Work. The Acdelco Arm601-4 Digital Torque Wrench Is Designed To Provide A More Precise Torque With Various Mode Settings. This Torque Wrench Has A Built-In Audible Buzzer And Lcd Display To Show Your Measurement (Ft.-Lb., Nm, In-Lb, Kg-Cm) Settings. Easily Power This Tool With Two (2) Aaa Batteries, Making It Very Lightweight And Durable. Ranging From 9.9-99 Ft.-Lbs, This Digital Torque Wrench Is Definitely A Must-Have For Cars.

Top Brand: ACDelco Tools

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100K+ customers rate items from this brand highly
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ACDelco ARM601-4 1/2” (14.8 to 147.5 ft-lbs.) Heavy Duty Digital Torque Wrench with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration
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Price-18% $114.99
List: $139.99		-10% $161.99
Typical: $179.99		$99.79$169.98$85.99$79.92
Delivery
Get it as soon as Tuesday, May 7
Get it as soon as Tuesday, May 7
Get it as soon as Tuesday, May 7
Get it as soon as Tuesday, May 7
Get it as soon as Tuesday, May 7
Get it as soon as Tuesday, May 7
Customer Ratings
4.44.4 out of 5 stars1,198
4.54.5 out of 5 stars295
4.44.4 out of 5 stars65
4.54.5 out of 5 stars123
5.05.0 out of 5 stars1
4.34.3 out of 5 stars177
Accuracy
3.9
4.3
4.7
4.4
—
4.1
Easy to read
3.8
4.2
4.8
4.7
—
4.1
Easy to use
3.8
4.0
4.8
4.3
—
4.0
Value for money
3.7
4.0
—
5.0
—
—
Sold By
Amazon.com
ACDelco Tools 🛠️
Fabiao US
Leolee US
LLAVETOR
Light Years Ltd
material
Metal
Metal
Chrome Vanadium Steel
Chrome Vanadium Steel
Chrome Vanadium Steel
ABS industrial plastics
head style
Fixed Square
Flat
Fixed Square
—
Square Drive
Fixed Square
style
Torque Wrench
Digital
1/2-Inch
3/8+1/2-Inch
3/8-Inch
Compact,Digital
item torque
147 foot pounds
37 foot pounds
—
295 foot pounds
—
100 newton meters
operation mode
Battery
Mechanical
Electric
Battery
Battery
Battery
finish type
Polished
Powder Coated
Powder Coated
Polished
Powder Coated
Polished
weight
3.9 pounds
2.95 kilograms
—
3 kilograms
—
750 grams

Customer reviews

4.4 out of 5 stars
4.4 out of 5
1,198 global ratings

Customers say

Customers like the ease of use, quality and value of the wrench. They mention that it's easy to set torque and buzzer rings, and that it gets the job done on a budget. Some are satisfied with accuracy. That said, opinions are mixed on performance and durability.

AI-generated from the text of customer reviews

40 customers mention29 positive11 negative

Customers find the wrench easy to use and set. They say the controls get easier each time, and the digital operation is a breeze. They also say it makes the job fast and easy, and that the peak and trace options work perfectly.

"Very good Quality and easy to use." Read more

"...I work on my own cars, I am not a full-time mechanic. It is an easy-to-use product...." Read more

"...Reading the instruction manual was PAINFUL. The instructions were written in very poor English...clearly written by a non-English speaker and..." Read more

"...I have used it multiple times now and the controls get easier each time...." Read more

23 customers mention18 positive5 negative

Customers like the quality of the wrench. They say it's a good unit, works as advertised, and is accurate. Some customers also mention that the fit and finish looks good.

"Really nice once you figure out how to set the few buttons. Feels sturdy and it’s nice to know I have the right torque from the buzzer sound." Read more

"Very nice torque bar!" Read more

"Did a little research before purchasing. Seems to fit my need." Read more

"...Once max set torque is reached, the rapid beeping turns to a steady beep, not a buzzer...." Read more

23 customers mention23 positive0 negative

Customers appreciate the value of the wrench. They say it's worth the money for the quality and range. Some say that it'll get the job done on a budget.

"...Good value for money" Read more

"...able to test them all, I would say that this seems to be worth the money for the quality and range...." Read more

"...Worth the money." Read more

"Works great use it all the time accurate good product for money thanks." Read more

14 customers mention14 positive0 negative

Customers like the accuracy of the wrench. They say it's a professional tool that provides reliable and accurate high torque capability. Customers also appreciate the feature that logs the max torque.

"...The accuracy is spot on each time. The wrench beeps when you reach the set torque value so you know when to stop...." Read more

"...I really like the feature that logs the max torque, so when you are in an awkward position and you can not see the meter, you can take the wrench..." Read more

"...Saved some of my pumps, when I leave it to my guys to use. Accurate enough I prefer it as well...." Read more

"...On the plus side, you have a very accurately calibrated tool and easy to set. I will probably return it and default to a different one." Read more

57 customers mention39 positive18 negative

Customers are mixed about the performance of the wrench. Some mention that it works well for the lower torque specs, is very good, and easy to use. However, others say that it is falsely advertised and will not work for their needs. The accuracy of the tool is highly useless for IN-LBS work unless you are measuring in IN-.

"This is a good tool for occasional use. I have owned this and the smaller version for over a year...." Read more

"Works great on target very accurate easy to use instructions suck tho...." Read more

"...use the display started turning off while applying torque which made it unusable...." Read more

"works great and easy to use. I wish that it was a little bit longer for easier torqe leverage" Read more

33 customers mention22 positive11 negative

Customers have mixed opinions about the durability of the wrench. Some mention that the build quality is solid, and the product is reliable. However, others say that it broke within 20 uses and is not that durable.

"Really nice once you figure out how to set the few buttons. Feels sturdy and it’s nice to know I have the right torque from the buzzer sound." Read more

"Lasted less than two years. Zero help from mfg. Junk. Save your $ and buy something better. I should have." Read more

"Very good Quality and easy to use." Read more

"...This wrench is built sturdily and has a nice weighted feel to it. The digital display is bright and easy to read...." Read more

20 customers mention3 positive17 negative

Customers are dissatisfied with the battery of the wrench. They mention that it doesn't come with batteries, the batteries die after a few uses, and the battery cartridge is missing. Some customers also say that the wrench shuts off when being used.

"No batteries included" Read more

"...The product arrived with no batterie" Read more

"...The product arrived with no batteries and it actually takes four batteries to use the wrench...." Read more

"...NOT TRUE. Four batteries are required, and ZERO are included.Those four batteries are just for the wrench to work...." Read more

13 customers mention0 positive13 negative

Customers are dissatisfied with the display of the wrench. They mention that it's difficult to read in the bright sun, and the LCD screen can be challenging to see. Some say that the display reads as low as 5 nm, but it cannot set the alarm. They also say that it needs a backlit display.

"...The display is only visible from a weird upward angle as well as I think this is an LCD issue. I have seen other people comment on this as well...." Read more

"...What made this even worse is that fact that the display is on the wrong side of the handle, meaning that if you are looking at the nut being torqued..." Read more

"...My only complaint so far is that although the display reads as low as 5 nm, you cannot set the alarm any lower than 13.5nm...." Read more

"...In this position though, it's extremely difficult to read the small display when applying torque to the wrench...." Read more

This torque wrench works
5 Stars
This torque wrench works
I've used this torque wrench in the few projects and so far and I have no complaints. With all the negative reviews I was hesitant to buy it. The wrench sounds off as soon as it reaches the pre set torque. Just as another reviewer wrote you can go down to 4ft lbs but the wrench can't be pre set that low. I've had no issues with the baterry or baterry cover but it does take 4 aaa batt like in the picture not two as written in the description. It's easy to use. I was gonna go with one from harborfreight for 169.99 but for 99 bucks this does the same thing. I will continue to use it and update my review if anything changes.
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Top reviews from the United States

jspenco
5.0 out of 5 stars Great tool.
Reviewed in the United States on September 18, 2023
Style: Torque WrenchVerified Purchase
Really nice once you figure out how to set the few buttons. Feels sturdy and it’s nice to know I have the right torque from the buzzer sound.
2 people found this helpful
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DAHIANA
5.0 out of 5 stars Easy to use.
Reviewed in the United States on April 8, 2024
Style: Torque WrenchVerified Purchase
Very good Quality and easy to use.
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Amazon Customer
5.0 out of 5 stars Takes a little practice.
Reviewed in the United States on April 22, 2024
Style: Torque WrenchVerified Purchase
I love everything about this! It did take me some time to understand how it works. Everytime I go to tighten a bolt it seems like the display is facing the wrong way, but the audible tones are so redeeming.
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Steven Porter
4.0 out of 5 stars not that durable
Reviewed in the United States on December 17, 2023
Style: Torque WrenchVerified Purchase
This is a good tool for occasional use. I have owned this and the smaller version for over a year. I work on my own cars, I am not a full-time mechanic. It is an easy-to-use product. Recently the wrench has started slipping slightly, so I have to re-check the torque when that happens. If you want something that lasts longer it might be better to spend a bit more. Good value for money
One person found this helpful
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OVillanueva
5.0 out of 5 stars Reliable high-torque wrench for automotive work
Reviewed in the United States on August 30, 2023
Style: Torque WrenchVerified Purchase
As a hobbyist mechanic who enjoys working on my own cars, I decided to invest in a heavier duty torque wrench for critical engine bolt applications. After researching options, I settled on the ACDelco ARM601-4 and have been very satisfied with its performance.

This wrench is built sturdily and has a nice weighted feel to it. The digital display is bright and easy to read. It covers a wide torque range up to 147 ft-lbs, which is plenty powerful for most automotive needs short of heavy equipment.

I've used it for torquing lug nuts, axle nuts, engine cylinder bolts, and more. The accuracy is spot on each time. The wrench beeps when you reach the set torque value so you know when to stop. This gives me confidence I'm applying the manufacturer's torque specs correctly.

The battery life is excellent, lasting for several months of weekend use between charges. The molded case it comes with is also handy for storage and protection.

For anyone working on cars in their own garage, this heavy-duty digital torque wrench is a must-have tool. The ACDelco ARM601-4 provides reliable and accurate high torque capability without breaking the bank. I'm glad I chose it over cheaper wrenches that likely wouldn't last or properly calibrate.
8 people found this helpful
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Firestaryou
5.0 out of 5 stars Works
Reviewed in the United States on March 11, 2024
Style: Torque WrenchVerified Purchase
Does what it is made to do.
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Parker H.
1.0 out of 5 stars Broke after 1 month... Warranty Requests go unanswered
Reviewed in the United States on October 7, 2023
Style: Torque WrenchVerified Purchase
After a month of light use the display started turning off while applying torque which made it unusable. Since it was beyond the Amazon 30 day return window, the order page said my only option was to contact ACDelco. I tried registering the product and putting in a warranty claim and I got an email 2 weeks later asking for me to send an invoice, and I responded to that email with everything they needed. But its been 5 months and I haven't heard back. Ive sent multiple emails and all of then go unanswered. I tried calling the number listed in the order details and the one on their website, but all of them go to the same phone system that just says no one is available to take your call and I tried on multiple days and times too. No office hours are listed on their website. Do not buy this item expecting a warranty.
17 people found this helpful
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Karin S.
5.0 out of 5 stars Decent Wrench and Torque does go down to 4ft-lbs
Reviewed in the United States on February 2, 2018
Style: Torque WrenchVerified Purchase
So far this has been a great tool. I have used it multiple times now and the controls get easier each time. I really like the feature that logs the max torque, so when you are in an awkward position and you can not see the meter, you can take the wrench off and see how close you are to the actual torque requirement and stop or keep tightening. The wrench says it goes from 4 to 99 ft-lbs, and it does, but there is a catch. If you read some of the other reviews you will see that some are saying that it does not go down to the 4 ft-lbs, and I did experience this when I got it out of the case for the first time. I was pretty bummed and a little T.O'd that the lowest I could set the tool was 10 ft-lbs. It seemed like it was false advertising and was ready to send the tool back, BUT I decided to use the tool and found out that it starts reading at 4 ft-lbs, so you can torque down to 4 ft-lbs, but you just can not set the alarm that low. So I figured that on the occasion when I have a very light torque I could just watch the digital meter. Most wrenches don't go down to 4 ft-lbs so not having an alarm is not a big deal for me. The wrench overall has a sturdy construction and it has a pretty smooth action. There are wrenches that are more and ones that are less and without being able to test them all, I would say that this seems to be worth the money for the quality and range. I really don't know what I could actually gain by purchasing a more expensive wrench, this one does the job.
69 people found this helpful
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Top reviews from other countries

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MANUEL A.
5.0 out of 5 stars Cliente de Amazon
Reviewed in Mexico on August 9, 2023
Style: Torque WrenchVerified Purchase
De muy buena calidad, le recibí pero me toco devolverla porque me equivoque en la capacidad de torque que requería. La devolución fue exitosa y rápida.Por eso siempre prefiero a Amazon, por su responsabilidad y eficiencia con sus clientes.
One person found this helpful
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Matt T.
5.0 out of 5 stars Works fantastic
Reviewed in Canada on October 28, 2022
Style: Torque WrenchVerified Purchase
Very nice tq wrench.
Beeps get faster as you get closer to your set tq then goes steady beep.
Would be nice to viabrate also but the next model up does.
Also the digital display goes up as you tq so you can tq say 5ft lbs but will not have a beep till 14ft tq.
Happy with my purchase
One person found this helpful
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Dude
5.0 out of 5 stars Bloody awesome bit of kit
Reviewed in the United Kingdom on March 15, 2020
Style: Torque WrenchVerified Purchase
This is really good, very happy with it will buy other products of same brand.
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Kelly Stephens
5.0 out of 5 stars Perfect tool
Reviewed in Australia on August 30, 2022
Style: Torque WrenchVerified Purchase
Best tool ever. Hubby loves it. Exactly what he needed
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DP
5.0 out of 5 stars It works
Reviewed in Canada on March 20, 2024
Style: Torque WrenchVerified Purchase
I like the fact it beeps when setting is reached
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