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.

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.

Pretty much a toy, the jaws aren't even parallel so getting a consistent zero isn't possible. I needed the depth measurement to work, and the depth bar needed to be metal because I was measuring the depth of water in a rice cooker and plastic would wick up the water, but the the bar in these are cut short by a couple of mm. I was able to sand down the end of the plastic body to match the rod, and I only need to be within 1/2mm, so it's good enough for my purpose, but the vernier markings down to 0.05mm are a bit of a joke.

Quality construction markings are clear and durable. Great price

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.

Can't beat the price and it's nice that you can measure ID, OD, and depth. However, there is a small gap in the printing between the gauge lines on the shaft and those on the slide that makes it difficult to tell exactly which lines are matching up. It's fine for measurements down to 1mm, but would be so much easier to read for finer measurements with gauge lines that actually touch.

These are really handy for quick measurements. I saw several reviews that mentioned the markings were off by a millimeter at some point. I can live with that - they're not a precision caliper. For household or quick workbench measurements, they're great. I bought two 2-packs so I could keep them in several locations. Would buy again.

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