I purchased this to provide initial adjustments (preliminary settings) on new control arms prior to installation. At full scale the accuracy failed to repeat itself at times being off as much as 0.01 inches full scale. This is remedied by moving the slide slowly and absent of jerking motions. Other than that it works rather well, and it comes with a decent protective case, and extra battery. For the price it's a good bargain and perfectly suitable for most uses.
This is an accurate Digital Caliper, it comes with an extra battery too. Although I don't feel like I will need to use that extra battery anytime soon, it is still nice to know I already have one. The display is large enough for easy viewing, which is a huge perk in my opinion. The only thing that would make this product better would be a backlit for the display, but I also understand that would drive the price up. Overall I highly recommend this.
Absolutely amazed what you can get for $20. I was a maintenance manger for turbines in electric utility service. We used to pay hundreds of $$ for Vernier and dial type calipers. These appear to be just as accurate using my measuring blocks for comparison and have an easy to read dial. It's not going to hold up to the rough service we gave our maintenance instruments but for non professional work these are a good bargain.
I bought these so that I could measure an electronic component that I wanted to 3D print a bracket for. It is a complicated shape where I needed to get the measurement of the size of some ridges that extend from the side that I am going to use to hold the component into the bracket. They seem well made and they open and close with an appropriate amount of pressure. You can either pull/push it open/closed, or you can make precise adjustments with the little wheel. I was surprised that they seem to turn on automatically when the calipers move. I use the power button mostly to turn them off.
set of calipers they feel nice in your hand, they smoothly operate without a hitch, and they have saved me a ton of time over trying to measure something manually. The Digital readout is clear and does a great job.