TM 9-243USING A TELESCOPING GAGE1.Loosen the knurled nut (1) at the end of thehandle (2).2.Slightly tilt telescoping gage (3) 5 to 10 degrees andlower into object to be measured.3.Tighten knurled nut (1).4.Remove gage by pulling across center line as indi-cated by arrow.NOTETake measurement only once. Repeatedattempts will produce an inaccuratereading.5.Measure gage setting with an outside micrometer.(To use an outside micrometer, refer to chapter 7 inthis manual.)USING A THREAD CUTTING TOOL GAGE1.Place the proper gage (1) over the tool (2). The toolmust mesh properly with no light showing betweenthe tool and the gage.2.Use a 29 degree angle as a guide when grindingcutting tool.3.After tool fits the angle, the point should be groundoff 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 GAGE1.A double-ended radius gage blade (1) is used to2.These gages can be used in any position and at anycheck the inside corner or fillet (2) of a machinedangle for both inside and outside radii.part. Each blade can be locked in position by tight-ening the clamp.16-7
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