Durofix 1/2" Digital Angle Torque Adapter (25-250 ft-lbs, max 720 degree) with Audible/LED Alert, RM604-4A

I ordered this because it has the Angle function and thought it was going to work great out of the box, but it didn't turn out that way. The book they provide with directions is a piece of Cr*%#*p. The best way to get operating instructions is to go on youtube and search for it, but even the video won't explain all the problems with it. I wanted to test it before I use it because I didn't want to screw up an engine I'm putting together. The first thing is it kept shutting off before I could do anything with it. I took the 2032 batteries out and they tested 2.7 volts. They are supposed to be at least 3 volts or more when new. I have some rechargeable 2032's that test about 4 volts and installed them. I noticed the tabs at the bottom of the battery compartment weren't pushing very hard on the batteries, so I bent them up a little bit to make a better connection. The replacement batteries and tightening the tabs solved the problem with it shutting off for a little while, but it seems to eat batteries. When you turn it on you have to have it on a hard surface and don't move it. It will flash zero's on and off and calibrate itself. The engine bolts I want to tighten require rotating them 90 degrees and the second rotation of 70 degrees. I tried setting the 90-degree angle, but it kept reverting to some other angle setting. There are three letters visible on the screen when you first turn it on. (P T A) (P - Peak Mode) (T - Trace Mode) (A - Angle Mode). P is set for the torque you want to reach. T gives you a readout of the actual torque while torquing. A is set for the angle you want to reach. After fooling around with the settings, I think there is a glitch in the programming. In order to make it work for the angle setting, I had to set the P Peak torque and the T Trace mode to the same value. In reality, I don't see why they made it so you have to set a value for the Trace Mode. It should just give you a real-time reading of the applied torque. When you use the angle setting, it won't start measuring the angle until the torque setting is reached. So, if I set the torque to the minimum, which is 25ft-lbs, it won't start reading the angle until 25ft-lbs is reached. With all the trouble I've had with it, it's worthless, so I'm returning it. By the way, while holding it in my hand, it feels about the weight of a rock that you could throw, which is what I felt like doing with it.

Came with batteries, that lasted 3 bolts before kicking LO alert for dead batteries. Angle function zeros out WAY to fast on it's own making hard to get to head bolts a pain because you have to rush to reset before losing your angle. The instructions don't mention how to set base for angle function. 25.1 ftlbs is too high for chevy heads which initial torque is 22, which is required in the angle function to set base. Then their 3/8 which does 22 doesn't do angle...

I like the warning beeps as you near the set point!

Arrived a day later than promised and with dead batteries.

First unit I was sent was malfunctioning, would only show a revolving set of zeros and power off. 2x sets of new batteries same thing, sent it back and received replacement. This unit too would power but power off randomly. Batteries wouldn't last 15 quickly torqued head bolts (first torque) before dieing. I went through all supplied batteries and 2 sets of mine to finish. Besides batteries, the torque angle "worked" when it did and would hold current angle even to ratchet which I thought was good. Display was bright but prizm look off to the side. I ended up returning it, just not user friendly and not consistently acturate. Might be ok if you use it once and that's it. I had a ac Delco unit I'd use for generic use for wheel lugs that I had misplaced thought this was a suitable sub. Stick to the click stick and degree finder. I bought a gear wrench 1/2 flex unit with degree & torque. Much happier