Heavy Duty Digital Torque Wrench: ACDelco ARM303-4A-340 1/2 with 12.5 to 250.7 ft-lbs. Torque Range

By: ‎ACDelco Tools

If you're looking for a reliable heavy-duty digital torque wrench that meets ISO 6789 standards and comes with a certificate of calibration, the ACDelco ARM303-4A-340 1/2” (12.5 to 250.7 ft-lbs.) is the perfect choice. With its easy-to-read display, intuitive user interface, and robust build quality, you can rest assured that you're getting the best torque wrench available. And, with its buzzer and LED flash notification, you'll always know when you've reached the desired torque. Visit the ACDelco Tools Store today to get your torque wrench and experience the peace of mind that comes with ACDelco Tools.
72
B2B Rating
15 reviews

Review rating details

Value for money
71
Size
67
Overall satisfaction
74
Easy to use
90
Easy to read
87
Design
82
Customer support
83
Build quality
76
Accuracy
70

Details of Heavy Duty Digital Torque Wrench: ACDelco ARM303-4A-340 1/2 with 12.5 to 250.7 ft-lbs. Torque Range

  • Country of Origin: ‎Taiwan
  • Power Source: ‎Battery Powered
  • Item Package Quantity: ‎1
  • Batteries Required?: ‎Yes
  • Brand: ‎ACDelco Tools
  • ASIN: B01GOUNZ10
  • Is Discontinued By Manufacturer: ‎No
  • Item Weight: ‎6.6 Pounds
  • Batteries Included?: ‎No
  • Best Sellers Rank: #388,388 in Tools & Home Improvement #561 in Torque Wrenches
  • Batteries: ‎2 CR2 batteries required.
  • Size: ‎1/2"
  • Customer Reviews: 4.3/5 stars of 181 ratings
  • Battery Cell Type: ‎Lithium Manganese Dioxide
  • Date First Available: June 3, 2016
  • Operation Mode: ‎Battery
  • Measurement System: ‎Metric
  • Included Components: ‎Metal Case, User Manual, Digital Torque Wrench, Calibration Certification
  • Product Dimensions: ‎2 x 2 x 26.25 inches
  • Material: ‎Alloy Steel
  • Part Number: ‎ARM303-4A-340
  • Item model number: ‎ARM303-4A-340
  • Finish Type: ‎Polished
  • Head Style: ‎Flat
  • Manufacturer: ‎Durofix, Inc.
  • Finish: ‎Polished
  • Item Weight: ‎6.6 pounds
  • Warranty Description: ‎1 Year Limited Warranty

Comments

Desert Fisherman: most moder cars are using torque to yield fasteners that require them to be torqued to a certain setting and then torqued to a specific angle after that. this torque trench allows you to do it with one tool without having to use any additional tools or angle gages. I have used it on a few projects now and i love it. I am planning on buying the 3/8s and 1/4 versions. I like it that much.

United States on Aug 14, 2023

<insert vaguely entertaining name here><insert vaguely entertaining name here>: Accuracy on mine seems spot on, even at the lowest values, but I'd still verify things before using it on anything sensitive at low torque. The lowest calibration point is at 68N.m (~50ft-lbs), and they only guarantee accuracy in the 20-100% range. You'd be taking a very expensive gamble using these on spark plugs, for example.

The auto shut-off time for these seems to be 3 minutes, which is better than the 2 minutes on many of the competing products, but I don't think the angle gyro is used to keep it on (if you're holding it, vs it being on the ground), which is a shame.

The main problem I had was with the battery compartment. An assembly screw was too long and it was indirectly squeezing the battery tube. One of the AA batteries kept getting stuck in the wrench and refused to come out. The moment I started to loosen the screw (the one holding the knurled red grip in place) the battery immediately came free. I'll probably just grind down the screw or something so it's shorter, but it's definitely a pain.

United States on Jul 16, 2023

David: Checked the reviews before purchase, which were fairly good.
The first few times I used it it worked great, however, after not using it for a few months, with the batteries removed, it would cut off in the middle of torquing a bolt, which resulted in severely overtightening critical fasteners. This resulted in damage to expensive ARP fasteners, and could have damaged a very expensive engine block, or resulted in catastrophic engine failure had I not caught the problem.
Now it cuts off with the slightest bump, even installing a socket will kill it.
It's out of warranty, so I removed the display section twice and checked for loose wires or cold solder joints.
I can't find a reason for the problem, nor can I isolate it to the board or the rest of the tool.
I'm EXTREMELY FRUSTRATED with this thing. I really liked it while it worked, but an unreliable tool is worse than no tool at all.

United States on Mar 18, 2023

Andrea Redmond: Easy to use, easy to set, easy to hear. Overall it is great.

If I had one complaint, it is that the auto-shutoff is a bit aggressive. A couple times I set it, hand tightened a bolt, and it shut off before it registeres that I was using it.

United States on Dec 03, 2022

mcr: I bought this expensive torque wrench based on some reviews and its description , found a lot of issues . the display didn't work all the time . i ended up stretching and breaking a bolt because the display suddenly stopped working while using it .

Canada on Jul 17, 2020

Terry Deal: Liked the price

Canada on Dec 20, 2019

Mystery_Shopper: Purchased mainly for the degree feature on this torque wrench as the wrench isn't really used for much else in my own opinion because just due to the precision of this torque wrench i wouldn't advise using it on torquing wheels. This torque wrench is mainly for torquing cylinder heads or crankshaft bearings or other torque applications that involve critical torque. Many i work with say "why not buy a Snap-on Tech Angle". The reason is because they are just too expensive so this is the next best option. I already own the 3/8 Digital Torque Wrench from ACdelco and have had nothing but success with it as i personally love it but trying to torque cylinder head bolts with a 3/8'' torque wrench is difficult so i had to purchase a 1/2'' version. Couple features about the torque wrench as it does N-m, Kg-cm, In-lb., Ft-lb, Angle Degree. The buttons are very easily to switch between different modes and the most feature used is the angle mode as it is EXTREMELY HELPFUL. It's just so simple as you press A-F-K button until it shows the degree in the corner then you toggle up or down to set the degrees. Now i seen many reviews that when you reach a degree it doesn't stop and reset, you have 0...

United States on Apr 28, 2019

Nigel C: Best bang for buck when it comes to Torque Angle Wrenches. Lights, vibration, and beep feedback. Great value for what you get.

Canada on May 10, 2017



Heavy Duty Digital Torque Wrench: ACDelco ARM303-4A-340 1/2 with 12.5 to 250.7 ft-lbs. Torque Range NEIKO 00200A 1/2" Drive Extension Breaker Bar | 15" Length | 360° Rotating Flex Head | Chrome Vanadium Steel Construction 3-Piece NEIKO 00235A 1/2” Drive Impact Extension Bar Set - Includes 3”, 5”, 10” Bars Made of Durable Cr-V Steel
Heavy Duty Digital Torque Wrench: ACDelco ARM303-4A-340 1/2 with 12.5 to 250.7 ft-lbs. Torque Range NEIKO 00200A 1/2" Drive Extension Breaker Bar | 15" Length | 360° Rotating Flex Head | Chrome Vanadium Steel Construction 3-Piece NEIKO 00235A 1/2” Drive Impact Extension Bar Set - Includes 3”, 5”, 10” Bars Made of Durable Cr-V Steel
B2B Rating
72
98
97
Sale off $3 OFF $3 OFF
Total Reviews 15 reviews 1 reviews 413 reviews
Country of Origin ‎Taiwan ‎Taiwan ‎Taiwan
Power Source ‎Battery Powered ‎Hand Powered ‎Hand Powered
Item Package Quantity ‎1 ‎1 ‎1
Batteries Required? ‎Yes ‎No ‎No
Brand ‎ACDelco Tools ‎Neiko ‎Neiko
ASIN B01GOUNZ10 B002GQ1O7E B000IN41B8
Is Discontinued By Manufacturer ‎No ‎No ‎No
Item Weight ‎6.6 pounds ‎0.01 ounces ‎1.72 pounds
Batteries Included? ‎No ‎No ‎No
Best Sellers Rank #388,388 in Tools & Home Improvement #561 in Torque Wrenches #2,698 in Tools & Home Improvement #4 in Torque Wrenches#6 in Socket Wrenches #3,500 in Tools & Home Improvement #8 in Torque Wrenches#10 in Socket Wrenches
Batteries ‎2 CR2 batteries required. ‎No ‎No
Size ‎1/2" ‎1/2" Drive x 15" ‎1/2" Drive
Customer Reviews 4.3/5 stars of 181 ratings 4.7/5 stars of 11,974 ratings 4.6/5 stars of 13,006 ratings
Battery Cell Type ‎Lithium Manganese Dioxide
Date First Available June 3, 2016 July 9, 2009 May 4, 2017
Operation Mode ‎Battery
Measurement System ‎Metric ‎inch
Included Components ‎Metal Case, User Manual, Digital Torque Wrench, Calibration Certification ‎1/2 Drive Extension Breaker Bar ‎Impact extension bars
Product Dimensions ‎2 x 2 x 26.25 inches
Material ‎Alloy Steel ‎Chrome Vanadium Steel ‎Chrome Vanadium Steel
Part Number ‎ARM303-4A-340 ‎00200A ‎00237A
Item model number ‎ARM303-4A-340 ‎00200A ‎00237A
Finish Type ‎Polished ‎Polished ‎Chrome Vanadium, Oxide Finish
Head Style ‎Flat ‎Fixed Square, Flex
Manufacturer ‎Durofix, Inc. ‎Ridgerock Tools Inc. ‎Neiko
Finish ‎Polished ‎Polished ‎Chrome Vanadium, Oxide Finish
Item Weight ‎6.6 pounds ‎0.01 ounces ‎1.72 pounds
Warranty Description ‎1 Year Limited Warranty
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