For hinges, prioritize soft-close mechanisms and check the opening angle (90°, 110°, or 165°). Verify the cycle test rating; commercial-grade hardware should withstand at least 50,000 to 100,000 open/close cycles. For drawer slides, specify the load capacity (typically 35kg to 45kg for standard drawers) and choose between ball-bearing slides for smoothness or undermount slides for a concealed, high-end look. Always confirm hole-spacing standards (e.g., 32mm system) to ensure compatibility with CNC-drilled cabinetry.