When sourcing porcelain cutting blades, you must prioritize Diamond Concentration and Segment Height. For porcelain, which is harder and more brittle than ceramic, a continuous rim design is essential to prevent chipping. Ensure the blades utilize Hot-Pressed Sintering technology, as this provides a denser segment and longer tool life compared to cold-pressed alternatives. Additionally, verify the bore size (e.g., 22.23mm or 25.4mm) and the inclusion of reduction rings to ensure compatibility with various angle grinders and tile saws used by your end-customers.