Just saw today, Lee Valley has a digital height gauge (for router bits, table saw dado and grooving depth), AND a digital angle box, set of both for under $30.
I'd jump on it but I already have such items.
https://www.leevalley.com/en-us/shop...01G%2CE9ZQ%2C1
I'd jump on it but I already have such items.
https://www.leevalley.com/en-us/shop...01G%2CE9ZQ%2C1