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frontpage Posted by Justdeals1j • Mar 6, 2023
frontpage Posted by Justdeals1j • Mar 6, 2023

ACDelco ARM602-4 1/2” (14.8 to 147.6 ft-lbs.) Heavy Duty Digital Torque Adapter

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$56

$130

56% off
Zoro
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Deal Details
Zoro has ACDelco ARM602-4 1/2" (14.8 to 147.6 ft-lbs.) Heavy Duty Digital Torque Adapter with Buzzer and LED Flash Notification for $55.99. Shipping is free when you sign in to your account (free to create).

Thanks to Community Member Justdeals1j for posting this deal.

Product details:
  • Engineered with high-quality materials that displays real-time torque values in ft-lbs. and Nm. Excellent tool for tiny, tight, and narrow working environments, but also reliable torque values that is ideal for professionals, automotive, motor bikes, and many other industrial uses.
  • Speed, accuracy, and an easy to read LCD screen that beeps when a desired torque value is achieved.
  • Engineered to last years or even decades to come with proper uses.
  • Converts any ratchet wrench into a precision adjustment tool with stunningly accurate calibration for existing digital and analog torque wrenches. Lightweight hard plastic housing with ergonomic hand-sized design that provides convenience for operating, storage, and traveling.
  • Includes: digital torque adapter, a manual of instructions and guidance, and a mini hard-shell case that protects and secures the tool once it is done using. This tool is powered by 2-coin batteries (CR2032 – included).
  • Manufacturer's limited 1-year warranty

Editor's Notes

Written by StrawMan86 | Staff
  • About this product:
    • 4.5 out of 5 stars rating at Amazon based on over 2100 customer reviews
  • About this store:
No Longer Available:
  • Amazon has ACDelco ARM602-4 1/2" (14.8 to 147.6 ft-lbs.) Heavy Duty Digital Torque Adapter with Buzzer and LED Flash Notification for $55.44. Shipping is free.

Original Post

Written by Justdeals1j
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Zoro has ACDelco ARM602-4 1/2" (14.8 to 147.6 ft-lbs.) Heavy Duty Digital Torque Adapter with Buzzer and LED Flash Notification for $55.99. Shipping is free when you sign in to your account (free to create).

Thanks to Community Member Justdeals1j for posting this deal.

Product details:
  • Engineered with high-quality materials that displays real-time torque values in ft-lbs. and Nm. Excellent tool for tiny, tight, and narrow working environments, but also reliable torque values that is ideal for professionals, automotive, motor bikes, and many other industrial uses.
  • Speed, accuracy, and an easy to read LCD screen that beeps when a desired torque value is achieved.
  • Engineered to last years or even decades to come with proper uses.
  • Converts any ratchet wrench into a precision adjustment tool with stunningly accurate calibration for existing digital and analog torque wrenches. Lightweight hard plastic housing with ergonomic hand-sized design that provides convenience for operating, storage, and traveling.
  • Includes: digital torque adapter, a manual of instructions and guidance, and a mini hard-shell case that protects and secures the tool once it is done using. This tool is powered by 2-coin batteries (CR2032 – included).
  • Manufacturer's limited 1-year warranty

Editor's Notes

Written by StrawMan86 | Staff
  • About this product:
    • 4.5 out of 5 stars rating at Amazon based on over 2100 customer reviews
  • About this store:
No Longer Available:
  • Amazon has ACDelco ARM602-4 1/2" (14.8 to 147.6 ft-lbs.) Heavy Duty Digital Torque Adapter with Buzzer and LED Flash Notification for $55.44. Shipping is free.

Original Post

Written by Justdeals1j

Community Voting

Deal Score
+21
Good Deal
Get Deal at Zoro

Price Intelligence

Model: ACDelco ARM602-4 1/2” (14.8 to 147.6 ft-lbs.) Heavy Duty Digital Torque Adapter with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration

Deal History 

Sort: Most Recent
Post Date Sold By Sale Price Activity
06/16/25Amazon$54
2
11/29/24Amazon$53
1
09/14/24Amazon$56 frontpage
25

Current Prices

Sort: Lowest to Highest | Last Updated 6/17/2025, 11:05 AM
Sold By Sale Price
Amazon$54.15
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Top Comments

This is the exact same adapter used by " Project farm"
you guys who are recommending "buy snap on/ matco/ etc etc" are pure regards.

the only accurate and good torque wrench is one that is tested and calibrated. you can do this buy getting a travel suit case scale for cheap. you can check that with another somewhat quality and cheap scale.

whether you're buying a $25 or $10,000 torque wrench, you need to check it and calibrate it frequently. same goes for thermometers. same goes for gauges.

keep buying harbor freight kings. the only problem with majority of their normal line and above tools is the user and their lack of knowledge and how to use it. the only time I've seen a harbor freight wrench or socket break was when someone who breaks their over priced snap on tools use them. why? Because a 3/8th wrench can have many different profiles, be made of many different metals, be cast to varying qualities, to varying amounts of mass to withstand specific amounts of torque and specific locations. if you need a beater wrench you'll generally want a wrench with more girth/material. guess what, hf offers both and then some.

if you use a socket on an misshapen part that disperses load in specific points, it'll deform the socket and crack, if not the bolt first. if you use a wrench that is for 50ft lbs and put 75, it'll deflect and break. if you use an ill fitting cheater bar and point a point load on the neck of the wrench vs a pipe that fits snuggly against a larger area, guess what, it'll likely break.

I torque objects from a couple inch pounds to the max, 7000 ftlbs. if harbor freight made sockets and wrenches to handle that, you'd bet I'd buy one if I had the need vs making one, as I usually have to do for the odd sizes at this point.

the biggest problem with cheaper torque devices is their ability to KEEP calibration. you should calibrate before every close tolerance job technically, ie pumps, engines, etc, and you can let it ride on majority if wheel/ brake, strut applications because the margin of error there is generally huge, as long as your parts are machined correctly.

buy a cheap torque device within your torque range with decent sentiment and check it every so often/ every large job. don't be a fool and think you need expensive shit to act as a lever/read you data. not going to look at the reviews for this but I imagine it would work for most people for most nuts on most buildings/ residential vehicles. ie 150 pounds ish is a 1500 truck and below for wheels/ most brakes and 5/8ish grade 5 bolts and below.

if you can find a used device for a decent price, go for it. it won't necessarily be better, but 99% of people will not benefit from a bigger name brand tool, and the majority who have them don't. don't be lured by a family line of mechanics who have been knocking on wrench trucks for generations. if your wrench breaks it could be a poor cast/metallurgy, they do exist. but usually it's because wrong tool. calibrate your shit.
Ofcourse you can, as long as you don't need to exceed 147.6 ft-lbs.

58 Comments

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Mar 6, 2023
2,136 Posts
Joined Jan 2009
Mar 6, 2023
cockadoodle
Mar 6, 2023
2,136 Posts
Can I use this with a breaker bar stuffed inside a 6 foot pipe for leverage?
5
7
Mar 6, 2023
380 Posts
Joined Apr 2009
Mar 6, 2023
ming1981
Mar 6, 2023
380 Posts
Quote from cockadoodle :
Can I use this with a breaker bar stuffed inside a 6 foot pipe for leverage?
Ofcourse you can, as long as you don't need to exceed 147.6 ft-lbs.
Mar 6, 2023
2,804 Posts
Joined Aug 2017

This comment has been rated as unhelpful by Slickdeals users.

Mar 7, 2023
151 Posts
Joined Mar 2010
Mar 7, 2023
jimglassford
Mar 7, 2023
151 Posts
From what I understand, these low cost torque adapters are very inaccurate. Torqueing a fastener is critical. Look at the independent tests on torque wrenches and you will see that these low cost devices are worthless. Save yourself the $55.00 because you could probably hand tighten with the same accuracy.

As for MSRP versus prices on sale are a gimmick. Sometimes I am surprised that people really believe these deals. If these devices coming out of Asia had an MSRP of $5000 with a sale price of $50.00, would everyone jump on it? The actual manufacturing costs on this is probably less than $10.
9
Pro
Mar 7, 2023
159 Posts
Joined Nov 2016
Mar 7, 2023
jd3073
Pro
Mar 7, 2023
159 Posts
Quote from jimglassford :
From what I understand, these low cost torque adapters are very inaccurate. Torqueing a fastener is critical. Look at the independent tests on torque wrenches and you will see that these low cost devices are worthless. Save yourself the $55.00 because you could probably hand tighten with the same accuracy.

As for MSRP versus prices on sale are a gimmick. Sometimes I am surprised that people really believe these deals. If these devices coming out of Asia had an MSRP of $5000 with a sale price of $50.00, would everyone jump on it? The actual manufacturing costs on this is probably less than $10.
any recommendations on better quality adapter?
1
Original Poster
Mar 7, 2023
38 Posts
Joined Feb 2023
Mar 7, 2023
Justdeals1j
Original Poster
Mar 7, 2023
38 Posts

Our community has rated this post as helpful. If you agree, why not thank Justdeals1j

Quote from jimglassford :
From what I understand, these low cost torque adapters are very inaccurate. Torqueing a fastener is critical. Look at the independent tests on torque wrenches and you will see that these low cost devices are worthless. Save yourself the $55.00 because you could probably hand tighten with the same accuracy.

As for MSRP versus prices on sale are a gimmick. Sometimes I am surprised that people really believe these deals. If these devices coming out of Asia had an MSRP of $5000 with a sale price of $50.00, would everyone jump on it? The actual manufacturing costs on this is probably less than $10.
This is the exact same adapter used by " Project farm"
4
3
Mar 7, 2023
77 Posts
Joined Jan 2021
Mar 7, 2023
CyanRoad9236
Mar 7, 2023
77 Posts
Quote from jd3073 :
any recommendations on better quality adapter?
Lightly used Snap-On, Proto, MATCO, or MAC Torque Wrench. They're all over eBay.

Buy it right, buy it once.
5

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Mar 7, 2023
128 Posts
Joined Dec 2017
Mar 7, 2023
poonchang
Mar 7, 2023
128 Posts
Quote from Justdeals1j :
This is the exact same adapter used by " Project farm"
I was gonna ask...thanks
2
Mar 7, 2023
234 Posts
Joined Apr 2009
Mar 7, 2023
almostdread
Mar 7, 2023
234 Posts
Quote from CyanRoad9236 :
Lightly used Snap-On, Proto, MATCO, or MAC Torque Wrench. They're all over eBay.

Buy it right, buy it once.
There is currently 1 (one) Snap On digital torque wrench on ebay and it looks more than slightly used and is $45 including shipping...and it's 3/8" drive and has a smaller working range than this item. Do any of those higher end brands make a digital adapter like this?

No Mac, no Matco and certainly not "all over" e-bay. I have a quality torque wrench set 1/2" and 3/4" but looked at this as a cool gadget to experiment with and imagine many people are thinking the same (a la "Project Farm").

While I completely agree about buying it once and buying it right, but this is cheap enough to even just use it as a tester to ensure one's good (aka expensive) tool is working as expected and calibrated correctly and for someone who doesn't have much use for one it's cheaper than even a Husky or something you could get at Home Depot.
Last edited by almostdread March 7, 2023 at 02:39 PM.
1
Mar 7, 2023
2,683 Posts
Joined Dec 2017
Mar 7, 2023
PoorFatKid
Mar 7, 2023
2,683 Posts
My Uncle Bud is a mechanic. He's been a mechanic since he was 15. He currently works as a used car mechanic at a very busy/popular dealership in Philadelphia. He brags about having never once used a torque wrench in his entire career. His career spans more than 40 years.

I bought this vey adapter and when he saw it in my tool box he called me a big pu_ _ y.

It's a nice torque adapter. I paid a bit more for it and have no regrets.
2
3
Pro
Mar 7, 2023
397 Posts
Joined Aug 2016
Mar 7, 2023
Gorillabeard
Pro
Mar 7, 2023
397 Posts
These things are great. I bought the Quinn one at Harbor Freight when it went on sale for $20 last year and it's very accurate.
1
Mar 7, 2023
143 Posts
Joined May 2016
Mar 7, 2023
zxjyjr
Mar 7, 2023
143 Posts
How does it compare with respect to quality to Quinn ones from harbor freight?
2
Mar 7, 2023
412 Posts
Joined Dec 2021
Mar 7, 2023
BraveTeam7995
Mar 7, 2023
412 Posts
harbor freight one is better ..lifetime warranty
2
Mar 8, 2023
47 Posts
Joined Feb 2018
Mar 8, 2023
garyham100
Mar 8, 2023
47 Posts
AC Delco? Batteries and auto parts might be quality, but I've run across misc Delco branded items that were garbage.
.
Last edited by garyham100 March 7, 2023 at 04:20 PM.
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Mar 8, 2023
1,474 Posts
Joined Aug 2008
Mar 8, 2023
WildRigger47
Mar 8, 2023
1,474 Posts
Quote from PoorFatKid :
My Uncle Bud is a mechanic. He's been a mechanic since he was 15. He currently works as a used car mechanic at a very busy/popular dealership in Philadelphia. He brags about having never once used a torque wrench in his entire career. His career spans more than 40 years.

I bought this vey adapter and when he saw it in my tool box he called me a big pu_ _ y.

It's a nice torque adapter. I paid a bit more for it and have no regrets.
Never met him but I'm pretty sure that your Uncle Bud and I would get along great.nod
1
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