Tool Storage Policy 3
The tool magazine of every machine is loaded with only one tool of each type as displayed in Figure. All spare tools are stored along with a number of another tool in the tool storage and handling system.
Figure: Tool Storage Policy 3
Advantage of Tool Storage Policy 3
1. A backup set of tool is available.
2. The number of similar sets of tools might be reduced in comparison to the number of tools in storage polices 1 and 2.
3. There is a low need for tool magazine capacity.
4. A backup machine can be made by changing tools in a tool magazine.
5. Each NC program is stored in just only one machine.
Disadvantage of Tool Storage Policy 3
1. Comparatively complex tool storage and handling system is needed.