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Hello everyone, I am new to CNC. Please tell me how to find Z depth on this drawing. I do not know how to get Z-0.605 and -0.586.

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Guessing those would be for your holes, you have to get the corners past your part for the drill to go through so I would take the thickness of your part(.500) plus .050 to ensure good breakthrough clearance and then add the distance from the point of your drill to the shoulder. This can be different depending on the angle of the drill point but is usually 118' for HSS drills and 135' for cobalt or carbide drills.
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