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

A great tool—very easy to use.

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.

New, sealed item. This thing looks like it's going to be very versatile. Going through these instructions and learning how to use the buttons a little bit cumbersome maybe not as obviously intuitively easy as it looks but after I use it a few times I'm sure I'll have it memorized.

I love this wrench, it's got plenty of features but it could also be improved. I first struggled to get the battery door off, turns out you have to slightly lift and then slide it out. Figuring out the controls to get it into in-lbs or Ft-lbs was a challenge. I wish the manual was a bit clearer but I did figure it all out with that assistance. Things that could be changed: Backlit screen and larger readout Longer auto-off time period or ability to disable Different tones for close and "at" torque spec. Improved interface.

Spectacular tool

I purchased this to install cylinder heads on my engine after a head gasket install. I have a mechanical one but wanted the extra assurance that I did get the torque specs as close as possible. Worked great. Comfortable handle and is simple enough to use. I wish the lcd was backlit so you could see the reading in dark areas but that would just be an added luxury I was able to use it fine without. Comes with a durable case as well, very satisfied with the value to price.

I have had this wrench for 3 years now. I have no idea how it lasted that long without me launching it. It is just so difficult to do what you actually want a digital torque wrench for. Starting with case, looks good but latches fall off every time you open it, adjusting it is the least intuitive process I have encountered and when using peak hold feature, the wrench beeps at different torque every time. For example, internal engine bolts that needed 28 lb ft , recorded as low as 26 lb ft but multiple times as high as 35 lb ft. I ended up starting again with a regular click type that was calibrated. The final insult is that after limited use over 3 years (as I don’t trust it ), the display over the LCD has fogged and now the numbers are nearly impossible to read. I note today they are selling at 50% off yet still somehow get a high rating. I am sure some folks will say I get what deserved buying a ‘cheap’ product but when I bought it, it was double current price. In short, every aspect about this wrench was unacceptable and I put up with it as I didn’t want to buy another. I finally gave up. Worse part is, I just didn’t trust it. I have replaced it with a click type that had calibrated. Ok, peace out.

This was not as expensive as a lot of others so I wasn't sure what to expect, it has surpassed it all. It is accurate and well made. I havent had any issues with this on anything that I have used it on. I am a garage mechanic so by no means a professional, but it has held up well on the several cars I have used it on.

Muy buena Calidad del producto

Got to use it once. Its very easy to set up. And works good as it is supposed to be. 20-200nm for those who are wondering. 😊

Best tool ever. Hubby loves it. Exactly what he needed

I like the fact you can see the torque you are at. My old torque wrench sometimes seemed like it would never click. I like the digital setting. Wish the display was a little brighter. Also have to make sure the unit has not powered down before you started tightening bolt. Its shorter than my other mechanical wrench so to get say 100lbs torque it takes a good amount or effort. If you are in a difficult position (overhead bolt) it can be challenging.

This torque wrench is nicely engineered and the digital interface offers extra features not found on a traditional tool. I like the real time torque readings and the audible bleep on reaching the preset torque. It’s worth reading the instructions before you use it. Obvious really - but I didn’t do that and I didn’t get far! It’s easy to use once you understand it though. I would highly recommend this product - and I am very fussy when it comes to tools.