Starrett 3089 Manual Del Usuario página 12

ENGLISH
• Similar to setting the tool to the master, insert the
gage into the bore that is to be measured and rock
the tool back and forth until the indicator hand finds
its reversal point. This reversal point represents the
actual size of the bore to be measured.
It is important to note that a more precise reading
can be achieved if both the mastering of the bore
gage and the reading taken in a bore are performed
in the same direction.
• Adjust the tolerance hands to the range to be controlled.
• When measuring, note that when the hand moves
clockwise, the diameter is smaller. When it moves
counter-clockwise, the diameter is larger.
• When measuring, always hold the tool by the
insulated grip (4) to minimize the measuring error
caused by thermal expansion.
12 PKG08801-UM3089
NOMINAL MEASURE
Larger
Smaller