The Onsrud model 500 SS is capable of plunge routing and profiling both inside cuts in hardwoods, softwoods, man-made woods, non-ferrous metals, aluminum, and a variety of plastics and composites. The 500 SS is generally best utilized in intermittent duty/light production duty.

With the correct tooling and a properly made template, this model is capable of cutting up to ½" hardwoods and ¾" softwoods in one pass. For deeper cuts, the turret style depth stop may be used for cutting material in multiple passes. The 500 SS C.R. Onsrud Inverted Router™ features a cast iron overarm, machine frame and spindle mount, along with hardened steel spindle slides resulting in a rigid, accurate machine. The model 500 SS is built to the same high quality standards as the larger, award winning 900 series Onsruds. The model 500 SS produces better quality work up to ten times faster than with a band saw, scroll saw, or hand router, and is more versatile than the conventional table routers. The retracting cutter and guide pin allows easy and fast plunge capability and less cutter exposure. The overhead guide pin means no need for expensive "bearing tools" with their inherent performance and safety problems.