IF your dimension only has a lower limit, then the NOMINAL is the upper limit. Hole size, for example, 10 -0.2 means the hole can be 9.8 to 10, the upper tolerance is zero.
IF your dimension only has a lower limit, then the NOMINAL is the upper limit. Hole size, for example, 10 -0.2 means the hole can be 9.8 to 10, the upper tolerance is zero.