Isn’t it a case of measuring the crack the same as you’d measure a chip @Goat Eyes ? So if the crack is over the 10mm/40mm from one end to the other it would be a fail?
To check the OP would just need to see if the 10mm/40mm circle covers all the crack?
To check the OP would just need to see if the 10mm/40mm circle covers all the crack?
Last edited: