have the bands without the tubes). If these bands
To learn more about other tools and their uses,
become loose through wear or expansion, the
refer to chapter 1 of the field manual FM 5-553,
tension can be increased on them. This type of
General Drafting, published by the Headquarters,
drafting machine is superior to that with pin-point
Department of the Army, and other civilian
linkage because there is less lost motion.
Figure 2-34.-Drafting machine with enclosed steel bands.