In mass manufacturing, two holes in a plate type of component are ideally located with the help of

Powder metallurgical components have

The skid in a stylus type roughness measuring instrument is used to provide ............ A .............. and define ................... B .............. geometrical profile of the surface.

$$A.$$ support / datum
$$B.$$ micro / macro

The fit on a hole-shaft pair system is specified as $$H7$$-$$s6$$. The type of fit is