PRECISION MEASURING AND GAGING - OD1642 - LESSON 1/TASK 2
FIGURE 13.
SMALL HOLE GAGE SET.
(c) Adjustable Snap Gages.
1 Three standard designs of the adjustable type of snap gage
are available (figure 14, view B, on the following page), consisting of a
light, rigid frame with adjustable gaging pins, buttons, or anvils. These
pins or buttons may be securely locked in place after adjustment.
The
locking screws are tightened to hold the gaging dimensions.
2 One type of adjustable snap gage is made in sizes that
range from 1/2 to 12 inches (1).
This gage is equipped with four gaging
pins and is suitable for checking the dimensions between surfaces. Another
type is made in sizes that range from 1/2 to 11 1/4 inches (2). This gage
is equipped with four gaging buttons and is suitable for checking flat or
cylindrical work.
3 The third type is made in sizes from 1/2 to 11 5/8 inches
(3).
This type is equipped with two gaging buttons and a single block
anvil, and is especially suitable for checking the diameters of shafts,
pins, studs, and hubs.
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