The possibility of using inserts of various sizes and shapes makes it possible to obtain tongue slots that would otherwise be possible only at great cost. It should be emphasized that the cutting speed and increment per pass depend significantly on the type of material to be processed.
Below is an example of the execution of a tongue slot, showing the time required and the cutting edge life. If there are no production requirements related to large volumes, the BT/BTA system is particularly suitable for making evolving internal gears.

Upon request, we can provide machining programs for popular CNC machines free of charge. The programs are set up so that certain machining parameters remain available to the machine operator.