Mitutoyo 500-196-30 Advanced Onsite Sensor (AOS) Absolute Scale Digital Caliper, 0 to 6/0 to 150mm Measuring Range, 0.0005/0.01mm Resolution, LCD

I went with a 35$ digital caliper initially. it seemed good, but when i got some extra money i decided to try what everyone else recommended. The size of my groups not only shrunk but also got more consistent. Using these I found the cheap ones were usually off by .001 often more. Im sure these will make up the cost difference over time.

I seen in other reviews about getting counterfeits. When you first get yours. Check YouTube videos. The counterfeits are easy to spot. Mine is legit thankfully.

The calipers are fairly good. The case they come in is fairly poor. THE CASE It may seem superficial but once you remove the papers from the box, there is too much room for the calipers to move inside the case. There is no soft foam or rubber padding to protect the tool from shocks if it is knocked around a bit. You can hear it move too much inside there when grabbing the case. I think Mitutoyo should supply a proper 2-piece case with a proper hinge and some basic padding for the tool, not a one-piece plastic box with no padding and a hinge that will come apart eventually. I actually like the case I got with my fifteen-dollar calipers better, even though that too is made of one piece of plastic with a cheap hinge. I dont feel confident moving the case around with the calipers in there; they jiggle around too much and basically have very little shock protection. If you arent going to be doing anything but storing them on a shelf for when they are needed, then its fine. A better solution is to keep the paperwork inside the case. The case has far less wiggle room this way and its what Im doing now. UNBOXING The unit comes inside the case with a sealed clear plastic that is not easy to open with your hands. It gives you a good indication that you are getting a new unit. The instructions are the big fold-out type with various languages. The SR44 battery packet was stapled to the paperwork in the box. The paperwork talks about the battery: The supplied batteries are used only for the purposes of checking the functions and performance of the caliper, therefore it may not satisfy the specified battery life. Im not sure if this statement is true or false but I know that only one battery was supplied and not batteries like they state. The paperwork suggests wiping off the thin coat of oil that the unit comes with. The oil is barely noticeable and there is a very good feeling of quality when inspecting the tool. There are no overprowering or unpleasant smells either. After installing the SR44 battery & setting the ORIGIN on the calipers and playing around for a few minutes, the unit would eventually return to 0.01 and not 0.00. Had to set the origin again. Mitutoyo makes mention of holding down the ORIGIN switch for more than one second. I guess its splitting hairs but its actually a button, not a switch. You may need a little narrow thing to press it if your fingers cant. The ON/OFF and other buttons are easier to press, for obvious reasons. Anyway, the unit feels good over-all and seems to be working within spec. CONCLUSION I felt that Mitutoyo supplied a cheap case essentially no different to the cheap caliper makers. It felt pretty crude to me and didnt feel like a deserving home for (relatively) expensive calipers. With the battery statement in the instructions, I am reminded of what the printer manufacturers do with new printers (supply less ink or toner with the bundled ink tanks). Im not sure if MItutoyo are supplying a cheaper battery or if the manufacturer simply wants to protect itself in case of returned units with shorter battery life, possibly from units sitting on the shelf too long with shortened battery life. Bottom-line? I like the unit but the cheap supplied case needs some basic padding and a proper hinge. We are paying over 100 dollars for calipers and getting cases basically the same as fifteen-dollar calipers. Mitutoyo should be doing better here. Despite this, I feel confident in the quality of the unit but still look forward to a day I can stop using disposable batteries.

The difference between Mitutoyo and the cheap knockoffs are readily apparent the 1st time you use them. These are smooth and accurate and the fit and finish are very nice. They are pricey but you are paying for precision.

I purchased this for my own home use. The caliper appears to be genuine. There is a small bit of marring on the back of the bar. The fixed jaw has some minor finishing issues as well. The sliding motion is not entirely smooth with noticeable oscillatory variations in resistance when moved at more than a snails pace. The overall quality and attention to detail of this model does not live up to that of my ~60 year old Mitutoyo dial caliper, or the ~20 year old Mitutoyo digital caliper i use at work. Mitutoyo is still really the only brand to consider for high-end, buy once, use forever type calipers. Compared to the older models this caliper is something of a disappointment. Given the market Mitutoyo calipers appeal to it is a shame that the quality/QC has been seemingly compromised to lower the cost or increase profit. Even if getting a new caliper that lived up to the older models cost twice as much as this one did it would be more than worth it.

Just holding it and looking at it you can tell the difference in quality. The fit and finish are amazing. The slide is smooth and doesnt wobble or feel loose. The display is easy to read and its spot on. You dont have to re-calibrate. It knows its exact position wherever it is when you turn it on. Ive had it for a few months now and the battery isnt dead unlike all the other look-a-likes you can find for $25-$30. Made in Japan not China. It does not have an automatic shutoff. some like that, some dont. I kinda like it when you get distracted (wife, kids, buddy with beers in hand) the measurement is still on display when you come back.

Before my review on the operation and accuracy of the Mitutoyo caliper, I wanted to share some key things to look for to verify you have purchased an authentic Mitutoyo Caliper and not a fake one. If youve done some research on the these calipers you probably found some reviews on eBay and Amazon about fake Mitutoyo calipers from China. So first thing, if you find Mitutoyo 500-196-30 calipers listed between $30-$60 they are fake (a good price will usually be between $100-$125). Now that said the one I purchased on Amazon was listed at $95.02 (this was best price I found on the internet, and per the info on the internet and to the best of my knowledge they are legit). So here are the top things I found on the internet to help ensure authenticity: - Mitutoyo is a Japanese company so stay away from sellers from China, and the case should say made in Japan not China - The serial number on the back of the caliper should match the Certificate of Inspection - Mitutoyo calipers are shipped in a sealed plastic packet and are wrapped in an anti-corrosive paper - Mitutoyo calipers include a stainless steel battery (SR44) in a separate package, and it should not be installed - Mitutoyo calipers should include a yellow (3) step set up procedure attached to the lock screw at the top of the caliper - Mitutoyo calipers will always have the same size numerical digits and the inch symbol will be to the right of the digits Now for my review...simply awesome! I recently got into reloading match grade ammo for my precision rifle, and +/- .005 can make a huge difference on your group size and hitting a target at 1000+ yards out. When I first started reloading I was using my old $20 Harbor Freight calipers, which is ok for basic reloading. However I wasnt getting consistent measurements and the Harbor Frieght calipers would always lose the zero position, so Id need to recalibrate after every measurement. In some cases on (3) separate measurements of the same bullet it would vary .005 - .015 and thats not going to cut it for reloading precision ammo, in the pictures below I was able to consistently get the same measurement on all (5) bullets I loaded at (3) different lengths. The Absolute zero function works flawlessly and is a must for me since I use a special adapter to measure the bullet length. So end result very pleased with these calipers and highly recommend.

Ive used these for 20 years at work so Im very used to them. Now I have a set of my own! Smooth action, big readout, bigger than the older style, that resolves 0.0005 inch in five full-sized digits. Simple to flip to mm. Does not turn itself off (a good thing!). Super stable---maybe due to the submicron internal resolution? Great finish and fit. Thumbwheel feels good. Batteries, per catalog, state 3 to 5 years but I suspect longer based on past experience---and I have left them on over many a weekend! This is not not a review of a counterfeit. This purchase was fulfilled by Amazon and their inventory control is impeccable. These calipers came in a sealed bag with a piece of Ferobrite VCI paper. That was placed in the one-piece molded case. On top of that, stapled all together, was the Ferobrite warning notice, a notice of the launch of Mitutoyos Smart Factory solutions website, a fold-out manual with 11 languages, a small notice to wipe excess oil from the calipers, a China RoHS compliance certificate (helping them to Import into China), a reminder to recycle batteries for the EU (in 7 languages) ---and--- an SR44SW battery made by Saizaiken, Japan. Batteries last a very long time in a real Mitutoyo and, just to be sure this is not a counterfeit, I made some measurements: Current when on was pulsing 2 to 6 μA and when off dropped to a stable 0.5 μA: very good. When a Mitutoyo wants a fresh battery a B is seen in the upper-right corner of the display. I measured this threshold at about 1.40 Volts. If you dont heed that warning, a Mitutoyo will not give bad or unstable readings but will instead simply turn off. I measured this cutoff threshold at 1.3 Volts and the readings were dead-stable up the that point. Other things that tend to indicate this is authentic is a CE mark with compliant dimensions, surface finish marks that are parallel with the tool, ABSOLUTE molded into the battery cover and gold plated battery contacts.

I have to trust measurements and after working with these for a while now I do. It hurt a bit to pay the price but no regrets!

Just what I needed. Arrived in excellent condition.