In engineering, general tolerance refers to the overall tolerance. A specific tolerance would be noted on a blueprint when an area requires a tolerance which is different than the overall project.

Tolerance is unintended deviance from basic size, while Allowance is intended.

Tolerance is the largest amount of error that can occur during its operation. Depending on the nature of the instrument, tolerance may sometimes be quoted instead of accuracy

Oliver R. Wade has written:

'Tolerance control in design and manufacturing' -- subject(s): Tolerance (Engineering)

Please show examples of "++"tolerance feature