Router
From DT Online
Portable Routers are used to produce recesses in the surface of materials (usually timber or plastics) or to finish edges of boards. Originally a hand tool, modern portable powered Routers may be regarded as the woodworker's version of a Milling Machine and CNC Routers are available.
Most models are Plunge Routers in that the cutter can be lowered into the work-piece and then locked to the required cutting depth. Router Bits can be made of High Speed Steel (HSS) but Tungsten Carbide Tipped (TCT) tools last longer and are preferred.
Router Bits are available in a wide variety of shapes to create different edge profiles.
Some appear similar to End Mills but their cutting action is different and they operate at higher cutting speeds.
Safety Point! All high-speed woodcutting machinery is dangerous and Routers must only be used by trained adults or trainees under direct supervision.