Review on 🔧 Nes Universal Thread Repair Tool, 11/16 to 1-1/2", NES2 by Polo Acri

Received this just in time to try it out. I had a project I was working on and I decided I needed to clean the threads on the harvester axle spindle and I figured if this was delivered on or before the estimated delivery date it would be here on time. As always with Revane, it was on time. The instrument itself is made in Israel and is of high quality. If you have never used such tools before, I will briefly describe how they work. They are not intended for cutting new thread, but for cleaning and dressing existing thread within a certain size range (the specs say 11/16" to 1 1/2", which seems correct). It is best if you have at least a small section of undamaged thread to run the tool for proper operation. They can be messy, but they should be straight enough. The blades will automatically align with the existing threads on the bolt and a good start is essential for good results. After making sure the blades are indexing the threads properly (straight and centered), tighten the handle and rotate the tool around the bolt to clean and straighten the threads. If they are badly clogged with dirt/rust you may need to do more than one pass to remove them. As you rotate the tool, the blades should move along the underside of the existing thread, cutting out dirt/rust and straightening out any nicks or flats in the thread. In use, the back of the bolt goes through the bottom of the V-notch formed in the tool against the blades. This "V" is made from aluminum alloy, which is nice as it is unlikely to damage a freshly repaired thread. The tool shows quality touches, for example the tool only works properly when rotated around a screw in one direction (to fix a thread going the other way just rotate the tool) and there is an arrow that pointing in the correct direction of rotation This tool, which is cast directly into the metal tool body, I prefer ink that can smudge or wear out. turns off over time. The blades are interchangeable, which seems easy enough. Simply pull out the roll pin where the blades are pivoted, unscrew the adjustment knob completely, and the blades should pop out instantly for replacement. They are made from decent tool steel and will last quite a long time with proper care. The adjustment knob rotates smoothly, the thread on it is precise and smooth. Overall, it appears to be a quality tool that has served my needs very well. I knew what to expect though, having used smaller versions of this tool in farm equipment repairs for many years. If you remove the screw and see that the threads are in place but don't look quite right, this tool will work. If something falls on the bolt and partially compresses the threads in one place (or two opposite places), this tool will work. If the thread looks like it has rust/dirt/mud or something else on the underside making it difficult to install/remove the nut, it is working. If the streams are "obfuscated" but everything else is there, this tool will work. What this tool does NOT do is clip new streams. This won't actually deepen the threads beyond their original depth, although it will "sharpen" them if they are rounded. It also won't fix truly twisted filaments, as the blades index themselves by following the bottom of the existing filament, or as close to the bottom as possible. As a quick reference, if you're a person of average hand strength, you really shouldn't be tightening the adjustment screw any further than you can by hand, and you shouldn't be turning the tool around the screw with any force other than hand pressure. If you can't finish an existing thread in one go, loosen it a bit, work your way around the screw and try again a little deeper. You can do this 2 or 3 times if you must. This will give better results and is less likely to damage the tool than trying to slide it all the way around a particularly hard-to-reach area. Use the spindle to make sure the thread is ok. Given that a new spindle would cost me around $300, I think this tool is a worthwhile investment.