TM 9-243
USING A TELESCOPING GAGE
1.
Loosen the knurled nut (1) at the end of the
handle (2).
2.
Slightly tilt telescoping gage (3) 5 to 10 degrees and
lower into object to be measured.
3.
Tighten knurled nut (1).
4.
Remove gage by pulling across center line as indi-
cated by arrow.
NOTE
Take measurement only once. Repeated
attempts will produce an inaccurate
reading.
5.
Measure gage setting with an outside micrometer.
(To use an outside micrometer, refer to chapter 7 in
this manual.)
USING A THREAD CUTTING TOOL GAGE
1.
Place the proper gage (1) over the tool (2). The tool
must mesh properly with no light showing between
the tool and the gage.
2.
Use a 29 degree angle as a guide when grinding
cutting tool.
3.
After tool fits the angle, the point should be ground
off to fit the proper place on the gage for the par-
ticular number of threads per inch to be cut.
USING A FILLET AND RADIUS GAGE
1.
A double-ended radius gage blade (1) is used to
2.
These gages can be used in any position and at any
check the inside corner or fillet (2) of a machined
angle for both inside and outside radii.
part. Each blade can be locked in position by tight-
ening the clamp.
16-7
