Precision parts for tiny moving mechanisms (≤ 1 mm) require laser machining capability. STI excels at manufacturing tiny, high-precision metal parts, and assembles complex mechanisms composed of multiple components.

Miniature moving parts, such as: discs, cog wheels, levers, belts, pins and shafts, perform different mechanical functions. The particular shape, size and material of the part depend on the application. A stainless steel lever used in a locking mechanism provides an example. Selective electropolishing maintains the sharp edge of the lever while rounding corners of moving areas to reduce friction and improve operating efficiency.