TM 55-1680-316-10
Do not use the switchblade knife where any great
pressure Is required for cut tiny or prying. The
locking device on the switch blade will give way
under pres. sure and the blade con fold up
unexpectedly.
NOTE
Do not use the hook blade as a screw driver. The
blade is not designed for twisting pressures and will
break rendering the hook blade unserviceable.
2-49. SIGNAL WHISTLE (Figure 2-4; item 7)
The whistle is used for attracting rescue parties at night or in foggy
weather. The sound of the whistle can reach a far greater distance
than your voice and requires less energy to attract attention to
yourself.
2-48
