I bought this digital protractor hoping for more accuracy when setting blade angles on a table saw. I feel more confident using this digital device than the cheaper ones on the market. You must be able to understand and read the instructions very carefully to set up this protractor. This is not a way out of the box, press zero, but a device ready to use. It would be helpful if there was a better guide. Overall, I like this device very much and I can only recommend it.
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