DurofixRM602-4A 3/8” (25 to 250 ft-lbs.) Digital Torque Adapter with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration

This is perfect for doing angle for head bolts and crankcase bolts. As long as you're starting torque is 25 ft lbs or more, then you can use this and it makes it so easy!Batteries going out will happen. Get some higher quality cr2032 batteries. May have to undo one bolt, re torque, then do angle again if this happens.I recommend this over an expensive digital torque wrench and those terrible angle gauge toys. Unfortunately for me, I have a warped head in my case, but this makes things easier when I do again soon.

Quality item. Arrived in good condition.

Right off the bat, the batteries are toast. Unit wouldn't function. Bought new batteries. After waiting for this thing to power on for a minute i figured out you need to set it down because it's trying to do some calibration. Each time you power it on it does this. Compared the torque alarm setting to two calibrated torque wrenches and it changed wildly +- 30ftlbs each time it was powered on. The only reason i bought it was to use the angle function. Guess what else is wildly inaccurate.... Not to mention it auto clears the measured peak angle in under 10 seconds. So if you are working in a tight area and need to pull it out to check it, then go back to complete the angle, odds are you will be looking at a new reading from what it thinks is zero. They should be paying us for wasting our time with this junk.

This is a very nice and accurate tool. It works exactly as it says.

Much easier to use than the dial angle tool for torque to yield bolts. It does regular torque measurement too but I have several good torque wrenches so I haven't used it for that

Never could set angle meter on original meter purchase. 0l

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.