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

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.

Honestly for the low price of $25 I didn't expect much out of these calipers. I figured they would be cheaply made with way to much play in the jaws or slide key... But they aren't! I couldn't believe how well built it was. There was absolutely no play in the slide even at full extension! I've had mitutoyos that had more slop. The measurements are dead on, it claims accuracy at +/- .001 and they weren't kidding. I used a .010 gage block as a reference measurement and the neiko calipers measured it at .0100 I mean if that's not dead on I don't know what is. The fractional readings are also an absolute bonus! finally no more wasting time having to convert a decimal value to a fractional number. Anyway with all those positives I can still point out a few negatives that should be mentioned... The slide itself has no play, with that being said it's so tight in the slot that you can feel it kind of dragging or just not sliding smoothly cause of the friction build up... No problem! Oil the slide with a few drops of air oil, clock oil, or a light gear oil. Do that once a week or monthly pending how often you use them and that slide moves like butter. The next negative is the buttons, they don't always register when you depress them... Again it's not really that big of a deal but if it doesn't work 100% everytime then regardless it's still a problem. The last and final issue is probably the biggest and this is going to really depend on the application your using these for... But the jaw tips are fairly thick, significantly thicker than the jaws on a set of mitutoyo this does limit your ability to get those jaws into super tight spaces. For instance if you need to determine the shank size on a small bolt say like a 1/4 - 20 the neiko calipers jaw tips will not fit between those threads. So in hindsight, that really does limit effectiveness. If you need that kind of flexibility and absolute precision obviously mitutoyo is the way to go... If you don't save yourself about $175 and buy a set of Neiko digital calipers! Last and final opinion... I was reading through several of the previous comments and alot of people seemed to be complaining about screen issues or zeroing issues.... Did yall ever happen to think "oh well maybe the battery is dead or dying"??? These calipers come with a battery already installed, and who knows how long they were sitting on a shelf before being shipped out. Batteries don't last forever folks! My best advice is when you get the calipers delivered first thing you need to do is just simply change out the battery with a new one. They take LR44 and will also accept SR44 batteries. So buy a set of neiko calipers today, go get you a pack of LR44 batteries tomorrow, stare out the window, and wait for that Amazon truck to roll on up!

Definitely remove the battery when not using or have a multi-pack of LR44 batteries on hand.

Fit and finish are pretty good, it didn't come full of grinding grit like the uber cheap calipers tend to be. You might need to tighten up the gib screws before use, mine were a little loose. Be careful though, they are easy to strip.The newer ones with the screw-on battery cover seem to have improved battery life over the old ones. I measured the quiescent current to be 14.4 µA (15.7 µA with it on). Assuming a somewhat conservative 120mAh of battery, that'd result in just short of a year of standby battery life.

The tool has a good weight to it and feels solid built. Pay attention to the instructions on how to change the battery. It comes with a small screwdriver to unscrew the screws that lock the battery hinged compartment. I like the thumb turn scrolling wheel that comes in handy when your trying to get very accurate minute measurements such as in Millimeters. The tools are either made in Taiwan or China. Can one buy this type of tool with price ranges of over $200? Yes. But for my home DIY projects this tool is adequate for me.

5 years of harsh use is about what you can get out of this bad boy. It still works just a lil' sloppy now. Some little brass piece came loose. Take the battery out after every use.Works fine for a hot rodder.