NEIKO 01407A Electronic Digital Caliper Measuring Tool, 0 - 6 Inches Stainless Steel Construction with Large LCD Screen Quick Change Button for Inch Fraction Millimeter Conversions, Digital Caliper Measuring Tool

Extremely helpful with sizing gemstones and also doing some gunsmithing, making sure everything is in spec. So far it returns to zero (0.00mm) accuracy even when sliding recklessly. Tool comes out of the box very clean, stainless steel is good quality and not warped, plastic measuring face is average. I wiped it all down and applied light gun oil down the channel. Feels solid and as long as it's treated nicely as you would a Mitutoyo it should last about as long.

does what it should. very accurate for CAD modeling for 3D printing. I could not live without this little tool. Like the metal body and the large display. I will say, however, that the power and reset buttons are very sensitive and set too near the thumb screw. This will cause you to inadvertently recalibrate or turn off the device when using the thumb screw for minor adjustments.

The Neiko Electronic Digital caliper is accurate and easy to use for measuring any thing that requires precise accuracy. The digital display is clear and makes it simple to read measurements without guessing. It feels well made for the price and has held up great with regular light use. Switching between measurement units is quick and convenient. However, the battery often loses connection, causing the display to flicker or reset unexpectedly. Reseating the battery usually fixes the issue, but it can be annoying when you’re in the middle of a project. Overall, it’s a good value and performs well most of the time, but the battery connection problem keeps it from earning a full five stars.

Real nice caliper for the price. I tested on some known measurements, and it's accurate.

Lets be clear: This is the NEIKO model 01401A, six inch, stainless steel, digital caliper with extra large LCD display. It comes with a sturdy plastic, utilitarian case, a mini screwdriver, the instructions and ONE battery (installed). Nowhere in the product description, instructions or on the box is there mention of a spare battery. HOWEVER, the product description says the battery is an LR44 where the box and instructions state the battery is a CR2032. I opened the battery compartment to verify and found the battery to be the CR2032.. The caliper itself looks, feels and performs like a quality piece of equipment. All the buttons work smoothly as described and the thumb wheel IS a bit loose in operation but not at all annoying. There is a fraction/decimal equivalence chart on the back. Usefulness is doubtful especially as the print is VERY small. The instructions appear simple and straightforward. Keeping them handy with the tool would be a good idea as accessing the battery compartment to make a change IS NOT INTUITIVE nor are the instructions completely clear. Once the screws are removed (carefully, they were tight), the directed movement of the thumb wheel is minimal. THEN, the entire back lifts away enough to free the battery tray which can be removed with your finger nail. On reassembly, I put a small drop of silicon grease on the screw threads to ease any future removal. The typical home user, hobbyist, and do-it-yourselfer will likely find this exceeds your needs or expectations. I feel that I should have gotten one YEARS ago. Addendum: There is an undocumented USB-C located on the top edge of the tool. An email sent to Neiko concerning it's use / purpose has been acknowledged but not yet replied to.

So far so good. this thing accurately measures even wires down to .007 inches. came in handy for a bunch of projects. Good to have on hand, so fast standing up to the test of time.

I ***HOPE*** that I got a lemon, and it's a titanic lemon at that. First it arrived on and running in the box. The values on the dial were changing continually to random numbers. The reset button had no effect (as I later found out) also dd the in/mm button. So after learning that the reset button was useless, I removed the battery and gave the unit a minute or two "to relax" in case there was a small charge left in its circuits. Then (after 10 minutes actually) I replaced the battery, and was surprise that the unit turned on immediately (although I had very carefully avoided touching the on/off switch). Surprisingly the same random displays started up immediately but this time after using the reset (clear?) button several times and then holding it down for about 30 seconds, the weird behavior stopped and left me with a set of random digits that meant nothing that I could imagine. So I (a) removed the battery, (b) cleaned the unit thoroughly removing any oil/grease/water/dust/pollen/whatever from the unit (just in case) and put a second new battery in it and turned it on. It initially showed a random value but the reset button seemed to work (that was wrong but i hadn't figured that out yet). When it turned on I made sue (using the thumb wheel) that the caliper was pushed back in to the "0" position and hit the reset button. It then showed -0.03" (I didn't write down the last digit ... sorry), but after 5 (yes FIVE) resets it finally showed 0. So I tried to use it. I have a set of calibrated 1-2-3 set-up blocks (1"x2"x3" certified as accurate to withing +/- 0.0005") and none of the measurements was anywhere near the values the caliper should have shown. Specifically the 3" side showed as being first 5.9... inches then suddenly 1.23.. inches then some other random number. The other two sides were measured with equal inaccuracy. So why go on? Because I'm a retired physicist and I'm used to dealing with things that "don't behave in a rational way." [ever hear about quantum mechanics? Yes, it's that illogical.] To make a long story short the reading were random and they changed of their own volition while the caliper was sitting on a desk and nobody was touching it. I tried it with three different batteries, and the results were NOT all the same - no instead they were all equally, randomly incorrect. I sincerely expect that this is just a bad unit. But my last calipers were a really cheap set from Igaging (made of plastic at that) BUT those are still working just fine and with completely accurate, repeatable results (I still have an older manual set that may have come over on the Mayflower but is still highly accurate - I just prefer digital for ease of reading. But it's great for checking accuracy - and it and the plastic Igaging set always agree to with the limit of my eyesight (sorry - a magnifying glass and a bright light helps). So i will be returning this unit and am going to buy another set. But you can safely bet you life savings that i will not be buying another set from NEIKO Because this unit was so unreliable and inaccurate, I cannot recommend it to anyone who doesn't simply want a strangely-shaped paper weight. From my experience it is definitely not a good purchase.

I bought this because I kept reading so many different thickness measurements for materials and I wanted to figure out if some of the materials that I had already purchased would work in particular machines. For instance, the Silhouette Portrait will only cut materials up to 0.8 mm so when I was looking at chipboard and whether or not it would work in that particular machine, people would have so many different measurements that I just couldn't figure out if a product was worth purchasing or not. I have a bunch of different materials that I have purchased over the past and did not end up working for me, so I got this to measure the thickness of those particular things. First, let me address the quality. It seems to be of pretty good quality. It is sturdy and moves easily (doesn't get stuck when trying to open or close). The digital readout is big and is extremely easy to use. There is a red button under the digital readout that you can push to turn it on or off, but it also automatically turns on when you slide it open. You can set the zero on it to any point which might come in handy for people that want to measure from a larger point (like comparing the exact same items to see if there is a difference or something). The case is OK... It is sturdy and it doesn't feel like it will break easily. It is plastic, but not a thin plastic. My only complaint about the case is that it looks like a tool case! haha. I will have to add some color to it and make it look less like something my husband might want to steal. It is also a little difficult to open at times for me but perhaps that's because I'm used to the easy girly tools. ;) There was a battery already installed and an extra one in the case. It uses a LR44 button cell which is VERY common in kids toys so I have a huge backup of batteries for this thing. Those batteries tend to be rather expensive if purchased from a local store for some reason. They are often times seen in watches and that's usually the department we would find them in when we used to shop for them. I actually found them cheaper on Amazon and ordered 100 batteries for less than the price of 2 at the local store. So, maintaining the battery for this should not cost a lot of money. I have one major complaint with the design of this and it has to do with the battery compartment. I realize that there is a spot to put your thumb to slide the blades open for use, but I tend to put my thumb directly onto the top which is where the battery compartment is. So, I almost always slide the cover off. I don't know why I do this and it probably has to do with the fact that I use other items that require that type of maneuvering, but it IS something that I do and other people might as well. Although it doesn't technically hurt anything to do that, the battery can (and will) pop right out of there if you don't catch yourself when you are doing it. For the most part I don't have problems with that happening, but I'm confident it will at some point. If there is any chance of this getting redesigned in the future, I would make it slide a different way so there is very little chance of accidentally sliding that cover off at all. It's a little irritating but not so much that I regret the purchase... because I really like this caliper! As for the price, I think it is well worth the money that I paid for it. I'll be using it like crazy to give some accurate measurements of items that I have seen incorrect information on and it will save me time and money on products that I try to create with my different machines. All I have to do is keep it away from my husband now!