Router with quick depth of cut adjustment

A router with depths of cut adjustment comprising:

• a drive unit (1);
• a drive unit cage (6) for carrying said drive unit;
• a cutter shaft (1) connected to and rotatable by said drive unit, said cutter shaft having an end for receiving a cutter;
• guide column means (15,16) extending out of said cage in the same direction as said cutter shaft;
• a rest plate (17) guided on said guide column means for movement toward and away from said cage and having an aperture therethrough for the passage of a cutter connected to said cutter shaft to a selected depth beyond a bottom of said rest plate;
• a threaded spindle guide (24) connected to said cage and having opposite open ends;
• a hollow threaded spindle (25) threadably engaged in said spindle guide, said spindle having one open end spaced away from said rest plate and an opposite end facing said rest plate, said splindle being rotatable in said guide for movement toward and away from said rest plate;
• a movable plate (29) movably connected to said rest plate;
• a plurality of threaded stop pins (27) threaded to said movable plate and each having a head portion (33), said stop pins being rotatable for movement of their head portions toward and away from said cage, said movable plate being movable to bring each of said stop pins separately into alignment with said hollow spindle;
• a swing extension (30) swingably connected to said opposite end of said hollow spindle for movement into engagement with and under a head portion of a stop pin which is in alignment with said hollow spindle and which is brought into engagement with said hollow spindle for mechanically holding said stop pin to said hollow spindle, a top of said head portion being accessible through said one open end of said hollow spindle and through one of said open ends of said guide for rotation of said stop pin, said hollow spindle being rotatable in said spindle guide for adjusting a distance between said cage and said rest plate.