Spurtar Vernier Caliper Measuring Tool 6", 0-6Inch/0-150mm Manual Non Digital Calipers, 0.001"/0.02mm High Precision Durable Micrometer

Love this tool. It sits on my desk and I use it almost daily, often several times a day when i do use it. it is accurate, battery free, solidly built, and looks good. Precise is the way I would describe this tool!

Nice tool. Vernier are not exactly in vogue, but this is very handy in most application. It reads well and moves well. Of course it is not a Starrett or Mitutoyo, but it isn't prices as those and other brands. Buy it for what it is and you will probably be happy with it.

Pros: (1) Mine lines up on 0 pretty well when fully closed. (2) The plastic case seems fairly protective. (3) The slide feels snug, not sloppy. ((4) It came with a decent, separate, 6 inch / 150 mm metal ruler.) ||| Cons: (1) The ad says "smooth slide with no grittiness" but the slider movement on the caliper I received definitely feels somewhat gritty. Lubrication helped a little bit. (2) The Inch scale does NOT look like the scale in the ad pictures. The whole-inch numbers on the caliper I received in June 2024 are unnecessarily small & hard to find. I improved the situation a lot by putting a red dot (with an Extra Fine Point Sharpie) above each whole inch number. (See my picture.) (3) If the printed markings are etched, they are not very deep, so the ink may wear off prematurely. (4) The "user manual" is a single 7x10 inch piece of paper with some helpful info, but their example for reading the metric vernier was poor (not helpful). Their online metric vernier example is much better than their printed one. ||| Notes about certain other reviewer complaints that I feel might be unjustified - (1) Some reviewers complained that this caliper can't be stainless steel because it is attracted to magnets "and stainless steel is not magnetic". However, there are over 50 "standard" formulas for stainless steel and some types (hardened martensitic stainless steel for example) are indeed attracted to magnets. (Unfortunately, the ad doesn't specify the type of stainless these are, it only says "hardened stainless steel".) These calipers may or may not resist rust well, but that ability cannot be judged strictly by how well they stick to magnets. (2) Some reviewers complained that the marks on the inch rule are at 0.025ths (40ths) of an inch instead of 1/2, 1/4, 1/8, etc. If you want fractions and you don't need to be more precise than 16ths, you should get a different caliper. However, many metal workers work to decimal inch specs, so this scale is right for them. Plus, getting a precise value from fractional inch vernier calipers involves nuisance frational math because you have to add x/y (from the bar) to z/128 (from the vernier) where y can be 2, 4, 8, or 16. Then you'll probably want to try to reduce the resulting fraction to have a smaller denominator (if you can). (For example, you might read 5/16 + 6/128. (That's 5/16 from the bar + 6/128 from the vernier.) Some math: 128/16=8, so multiply 5/16 by 8/8 to get 40/128. 40/128 + 6/128 = 46/128 = 23/64.) Decimals are MUCH easier to work with than fractions with different denominators are. (E.g. you might read 3 x 0.025 + 0.008 = 0.075 + 0.008 = 0.083.) If you must convert from a decimal inches caliper to fractions, using a chart is pretty easy (you just have the nuisance of keeping the chart close by).

I find great value in this tool. With proper care, it should last a lifetime. I do not know why Amazon desires that I mention Battery Life; but I will say this model was specifically selected because it requires no battery, has no electronic display or any digital functionality (to fail or go out of Calibration). Best described as, "Analog baby." Accuracy confirmed against a different, trusted, 0.001 Caliper and this thing is closer than the listed specifications give it credit for. If for some reason you cannot read a labeled slide-rule, this probably won't work for you. For everyone else, this is the simple, accurate, functional Caliper that you are looking for. I will leave it to a hand model to demonstrate that the thumbscrew locking operation is excellent and smooth, it has smooth and stiff slide-action (not sloppy at all), nice probe depth and allows grip and control in use. Case and even a cleaning cloth included.

I just wanted a tool I could keep in the end table drawer near my couch for the times I need a semi-accurate measurement. Previously, I have purchased an inexpensive digital unit, which was a huge disappointment. It was flimsy and inaccurate. The jaws were not straight and the finish was pretty bad. next, I bought a plastic one (not digital or dial), reasoning that a well-made plastic one would probably be as accurate as the cheap digital unit. The plastic one was laughably bad...the scale was off by at least 0.5mm and the play in it was way more than expected. I threw that one away after a day or two. Finally, I bought this one. I'm very pleased. It has acceptable error and is nicely made and finished. It's not a Starrett, but it works great for measuring this and that. Plus, it's cheap enough that i don't care if it gets misplaced or dropped. The plastic case is a nice plus.

I bought these knowing they are cheap low quality, but good enough to teach the basics of reading vernier calipers. I would not recommend for anything where precision really matters. Anything below .01 is really questionable. Parallel check of the outside jaws is off more than .005 due to improper adjustment of the moving jaw and slide. The fit and finish is what you’d expect for any inexpensive precision tool. However for a cheap set to teach basics and not worry about drops or calibration, these will work.

Most of the other reviewers complains about various issues with this caliper: accuracy, oily, possibility of rust, roughness of edges. All right complains, but they need to be put in perspective. If you are considering the purchase of a vernier caliper you know at least something about mechanics. How many parts made such a device? Building that many, with highest quality material, to the highest possible standard for accuracy (hence sharp) on one side of the part (the "internal") and for user friendly (hence smooth) on the other side (the "external") cannot be made cheap. All manufacturing procedures have tradeoffs. So for the price, this is an excellent product. Is it accurate enough? Yes, mine is accurate to the level of the vernier scale, however a tiny bit wobbly at that level, hence one less star in accuracy. Easier to read. Is it oily? Yes, but for most use that's minor problem. Is it rusty? No, but the manual says that if you clean the oil completely it might become so. Is it smooth? No, it's a bit sharp. If I had time to spare and would use it more often than I do, I'd try to smooth it with a file. But for occasional use it's totally usable. At this price, it totally deserves five stars. Granted, if you compare it with a similar one costing 10x its price, it would barely get two stars, perhaps it'd get even just one. But that would be an unfair comparison, like a race between an accomplished world champion and a random kid in middle school.

I like the simplicity of these vernier calipers. I've been using tools like this for many years. Great quality and a fair price. They have a nice rule inside the box and a nice cleaning cloth. I highly recommend this product.