PRECISION MEASURING AND GAGING - OD1642 - LESSON 1/TASK 2
adapt to the physical requirements of some types of work.
(a) The frame back of the anvil may be cut away to allow the anvil
to be placed in a narrow slot.
(b) The frame may have a deep throat to permit it to reach into
the center sections of a piece of sheet metal (sheet metal or paper gage).
(c) The frame may be in the form of a base so that the gage can be
used as a bench micrometer.
(d) The frame may have a wooden handle and may be of extra-heavy
construction for use in steel mills for gaging hot sheet metal.
(4) The spindle and anvil may vary in design to accommodate special
physical requirements. For example:
(a) The spindle and anvil may be chamfered so that the micrometer
gage can slide on and off the work easily, as when gaging hot metal.
(b) The ball-shaped anvil is convenient in measuring the thickness
of a pipe section of small diameter.