Scales,
Two-bevel
scales
Continued
Two-bevel scales tend to be wide-based. The two scale faces are always
visible.
Figure 2-58 shows a two-bevel scale.
Figure 2-58. —Two bevel scale.
Opposite-bevel
There are two scale faces on an opposite-bevel scale, but only one scale face
scale
is visible at a time. Because the sides of this scale are beveled, it is easy for
you to remove it from the drawing surface.
Figure 2-59 shows an opposite-bevel scale.
Figure 2-59. —Opposite
bevel scale.
There are four scale faces on one rule on a four-bevel scale. Both edges on
both sides are beveled. This type of scale is usually found as a small pocket
scale particularly for machinists.
Figure 2-60 shows a four-bevel scale.
Figure 2-60. —Four
bevel scale.
Continued on next page
2-49
Four-bevel
scale
