PRECISION MEASURING AND GAGING - OD1642 - LESSON 1/TASK 2
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.
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
3 The third type is made in sizes from 1/2 to 11 5/8 inches
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.