How to calculate the inner diameter of 50× 5 chamfer by ordinary lathe?

Usually, an angle of 45 is often represented by c, and if the depth of the angle is 1mm, it is C 1. Then the depth of this angle in the z direction is 1mm, and the depth in the x direction is 2 mm. Because the diameter in the X direction is actually only 1mm in the radial direction, that is to say, the depth of the 5X5 angle is 5mm, that is, C5.

Then the depth of this angle in the Z direction is 5mm, and the X direction is 10mm, because the diameter in the X direction is actually only 5mm in the radial direction, and the chamfer of the inner hole with an inner diameter of 50mm is 5.

X5, then the diameter of the face block is 60mm, and it is enough to chamfer the orifice to a depth of 5 mm.