There are plenty of angle guides that’ll help you set a specific angle. They tend to be object specific though because they typically involve clamping the blade

There are plenty of angle guides that’ll help you set a specific angle. They tend to be object specific though because they typically involve clamping the blade to hold it in a fixed position. For example the Lansky and Worksharp Precision Adjust work for knives but not chisels. The Veritas Mk ii works for chisels and planes.