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⚡ Torque Smarter, Not Harder — Precision That Pops!
The ACDelco ARM302-4S is a professional-grade 1/2" electronic digital torque adapter offering a broad torque range of 12.5 to 250.7 ft-lbs with ±1.5% accuracy. Featuring dual LED and buzzer alerts, it ensures precise torque application and stores up to 30 data sets for tracking. Certified to ISO 6789 standards with a calibration certificate, it converts any ratchet wrench into a smart torque tool, making it indispensable for millennial pros demanding reliability and efficiency.



| ASIN | B01GKK7DNA |
| Best Sellers Rank | #187,407 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #441 in Torque Wrenches |
| Brand | ACDelco |
| Brand Name | ACDelco |
| Color | Red |
| Colour | Red |
| Customer Reviews | 4.3 out of 5 stars 107 Reviews |
| Finish Types | Polished |
| Global Trade Identification Number | 04716872175826 |
| Head Style | Fixed Square |
| Head style | Fixed Square |
| Included Components | Tool, Calibration Certification, User Maunal, Metal Case. |
| Item Torque | 250.7 Foot Pounds |
| Item Type Name | ACDelco ARM302-4S 1/2-inch Electronic Digital Torque Adapter, 12.5-250.7 ft-lbs, Buzzer & Flasing Notification |
| Item Weight | 499 g |
| Item package quantity | 1 |
| Item weight | 499 g |
| Manufacturer | Durofix |
| Manufacturer Part Number | ARM302-4S |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Measurement Standard | Metric, SAE |
| Model Number | ARM302-4S |
| Number of Items | 1 |
| Number of Packs | 1 |
| Operation Mode | Electric |
| Package Quantity | 1 |
| Set Name | 30 |
| Unit Count | 1 Count |
K**A
Works great
I had no problems with battery life as stated in other reviews. it is super accurate and connects right to a breaker bar or socket wrench. I've used it so far to torque a head, water pump, crank pulley (147 ft/lbs), and engine mounts. Zero complaints so far and I think it's a worthwhile purchase. It even comes with a case, which is nice because dropping any torque wrench can wreck it's accuracy. It starts reading at about 12/13 ft/lbs, so if you need less than that buy an in/lbs torque tool instead.
M**D
Great small digital torque adapter.
Small, accurate and with a good range of torque settings, were the reasons for choosing this digital torque wrench, and from a British company.
A**N
bonne qualité
Facile à utiliser ,
M**C
Tightening down the hatches
This is a great design and build quality. The only thing I don't like is you need to unscrew the cover to remove the battery. I don't use it that often, so I remove the battery when not in use. Other than that, I like the metal case it comes with, and I like the way it works. I recommend.
T**M
TARRRK DEEZ NUTZ BOIEEE
Hit the button, slap it on the endo your wrench and TWIST
Trustpilot
3 weeks ago
1 week ago