ACDelco Tools ARM602-34A Heavy Duty Digital Torque Adapter Combo Kit with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration, 3/8'', 1/2''

It looks very well made nice and simple to use

This review is written from Lagos, Nigeria for the ARM602-4 with 1/2" drive. I ordered this product when it was time to replace the cracked cylinder head gasket on my '09 Toyota Corolla with the 2ZR-FE engine. The product arrived in excellent condition and included the two batteries needed to operate it. The seller had earlier sent me instructions by e-mail on how to use it. It also includes an owner's manual with clear instructions. My impressions: it is easy to use. It is easy to learn how to use. It doesn't take you more than a few minutes to begin implementing what's written in the owner's manual (You, of course, do read manuals). Once you install the batteries you are ready to pop your square drive in and torque all sorts of things. There is a digital readout that's clear and easy to read in daylight; there is no backlight for dark places. The buzz that informs you about your target torque is loud and clear for probably most situations you'll find yourself. When you approach 90% of your set torque setting the beep begins and remains until you reach your preset torque in which case the urgent beep becomes a long buzz. You'll want to play with this tool when you first use it to get a feel for how far above torque you get it. There's a 'Peak' mode as well as 'Trace' mode - Peak mode saves a reading of the highest torque you've applied; I liked clearing this each time to see a new peak reading at the next attempt. With a few attempts I learnt how to slow down rotation to bring me as close to matching preset torque as possible, give or take. The Trace mode allows you see the torque reading in real time if that's what you want. You'll have to adjust the device to account for rotation so you can still see the screen while turning a bolt. Now, here is the catch: from my photo you can gauge the size of this tool - it will be impossible to use it in a few (or many situations) depending on the space in your engine. It was easy to employ for cylinder head bolts, camshaft bearing cap bolts, my right-hand engine mounts, intake manifold and then some bolts on the timing chain cover. The problem is that it was too large to allow me torque some bolts on the timing cover, exhaust manifold and alternator. I used it on most but the aforementioned few I had to torque by "feel". Also, this tool is calibrated for 20N.m - 200N.m (14.8 - 147.5 lb-ft). I found that all those 10mm bolts that required much smaller torques I just tightened by feel - the device won't register a readout until you reach 20 N.m, even when in trace mode. Another reviewer suggested to use this as a calibration tool for your other torque wrench instead and save yourself any headache. I do agree that another torque wrench may be needed to complement this. Over all, I am satisfied. This was all I used for the head gasket job for my car and I am pleased.

These were exactly what I was looking for. They work great with my ratchets of pry bar. I’ve used them for torque the bolts on flywheels, oil pans, and full motor rebuilds. I would highly recommend.

I have used this a couple times and I can say without a doubt that it was well worth the money that I spent on it. Being able to attach it to any 1/2" breaker bar is great, I have a very robust breaker bar with very little flex that pair nicely with this torque adapter. 147 ft-lbs is enough for my needs as my old trucks wheel lugs require to be torqued to 100 ft-lbs. Buy this, you won't regret it.

Excelente calidad trae su estuche y todo pila lo recomiendo

I researched and checked everything out b4 buying...now that I have it...I love it.. Very accurate..ease of use..lots of functionality.