Ultrassist Plastic Vernier Caliper (2pcs), 150 mm Mini Plastic Caliper for School Student, Portable 0-6 Inch Measuring Tools, Sliding Gauge

I got these because, frankly, they looked like a neat way to introduce my kids to metrology. At a few bucks apiece I could buy half a dozen and place them around the house. I keep one in the garage and one at my computer desk because they're useful in a pinch. They're no more accurate than a tape measure, but because they slide into the device like calipers, they're more accurate than a ruler or a short measuring tape. Overall, if you understand their limitations, they're great and meet those modest expectations.

Quality construction markings are clear and durable. Great price

These are great and every handy man should have one in their tool box. We all know what it is like to go to the home good store and purchase a bolt, pipe, board etc. that is the wrong size or put in the wrong bin. This caliper is slim and fits easy in your pocket. Take it with you every time you visit the home goods store and confirm OD, length, ID, depth etc. Do not go home with the wrong part. I bought a Fowler caliper like this in 1971. The number etchings recently wore off. I have been looking for a replacement for several years. No one stocks them except Amazon. Good job!

I work in HVAC and these are perfect for measuring fan shaft sizes in tight locations. Being plastic, they are relatively durable, and the numbers are easy to read. At this price point I’m not too concerned with breaking or losing one because I have another one on back up. Measurements are accurate and perfect for out on the field.

These aren't super accurate, but I knew that before buying them, and for my intended use they don't need to be. I have a similar set of calipers from Harbor Freight that I got years ago, and has served me well for things where I only really need to know measurements to the nearest 1/32" or so. I bought these for the same purpose, but thought they looked like they could be slightly better quality. Even if they weren't any better, I figured they would still be at least as good as the HF ones. Sadly, these have a couple of issues that actually made them worse: 1. These don't measure to 6", they only measure to a maximum of 5-1/16". The retainer piece on the back (meant to keep the hole depth rod in place) is too big and prevents the slider from reaching the end. There is a notch in the slider that is meant to clear the retainer, but it's not big enough. 95% of the time this won't cause issues for me, but it's sloppy to say the least. 2. The hole depth rod was cut too short. On both sets that I received, the rod is about 3/32" too short, so I can't use either of these for measuring depth, which is a much bigger issue for me. Rather than give up, though, I'm thinking about filing the rods down more so that they're an even 1/8" short - at least that way I can take a measurement and add the extra length in my head. I rarely have a need to use the metric scale, so this won't affect me much, but there also seems to be an issue with the metric vernier scale. The "10" mark is not even close to lining up with 0.5 mm. Beyond those issues, these perform like you can expect from plastic calipers. I don't trust these (or any plastic calipers for that matter) to be accurate enough to really make much use of the vernier scale, but that's good enough for my intended use, therefore I give them 3 stars. Overall, though, it's generally a bad sign when a product is worse than Harbor Freight's cheap stuff, especially when it's about double price (per each). I will say, however, that mine don't have the issue with markings rubbing off, like other reviewers mentioned. Even with firm pressure from my thumb, I couldn't get the markings to even begin to fade. Maybe mine have a different kind of ink, or went through a different printing process.

These are a great value! I've been using plastic vernier calipers for some years. I have various precision calipers for transmission, differentials, disk brakes, and engines including digital, dial, and slide. But I don't need precision for most things like pipes and hoses or basic thickness measurements. The plastic calipers work great and I don't think twice about where I set these or what I use them on. The slide is firm and the scales are easy to read. The scale is typical 1/16" versus a precision caliper with a .001 scale.

They give two plastic calipers, imperial or non-metric and a metric caliper. They’re good to learn how they work and for a good-enough simple measurement without spending over $100 for professional calipers.

Exactly what I needed and expected. My old one broke after 10 years of use. Construction is simple and easy to use for a multiple of tasks. Price is right, not a fancy complex digital unit that needs batteries.

Pour mesurer la tension de ma machine à tricoter circulaire. Facile d'utilisation. Je le recommande.

I liked the price and the plastic, and the vernier scale works. But the depth gauge was off by 1/16 inch (poor manufacturing), and one of the calipers was really, really loose (more poor manufacturing). I guess you get what you pay for.

So frustrating. This is the 3rd caliper I've ordered from Amazon and they're all inaccurate.

Écriture blanche qui s'essuie rapidement avec les doigts

I don't like that it doesn't have a lock to keep the setting in place but it is very clear and easy to read