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Technical engineering analysis of small batch CNC machining cost drivers by FIWOK METALWORKS. Operating from our Shenzhen factory since 2012 with 14+ years of industrial expertise, we explain how non-recurring engineering (NRE) costs, CAM programming, raw material choice, and hardware setup complexity affect the total unit price. We manage scalable small-to-medium batch production runs from 10 to 10,000+ pieces, balancing machine cycle runtime and workpiece geometry access constraints without any product development involvement. Relying strictly on customer blueprints, our workshop holds tight tolerances down to ±0.005mm for complex aluminum 6061-T6 and stainless steel components. Quality gating is handled via VMS optical projectors and digital height gauges to guarantee 100% material source traceability and dimensional batch reports for overseas OEM buyers.