USE/CARE OF HANDTOOLS & MEASURING TOOLS - OD1621 - LESSON 3/TASK 1
USING KEY SEAT CLAMPS, RULE, AND SCRIBER.
Calipers and Dividers
Dividers are used for measuring distances between two
points, for transferring or comparing measurements directly from a rule, or
for scribing an arc, radius, or circle.
diameters and distances, or for comparing dimensions or sizes with
standards, such as a graduated rule.
(a) Spring Divider. A spring divider (figure 175 on the following
page) consists of two sharp points at the end of straight legs, held apart
by a spring and adjusted by means of a screw and nut. The spring divider is
available in sizes from 3 to 10 inches in length.
(b) Wing Divider.
A wing type divider (figure 175) has a steel
bar that separates the legs, a locking nut for securing a rough measurement,
and an adjusting screw for fine adjustments.
The wing-type divider is
available in 6, 8, and 12 inch lengths. An improved version of this type
has the tip of one leg removable so that a pencil can be inserted.