When sourcing a gasket cutter, you must prioritize cutting precision (tolerance within ±0.1mm) and material compatibility. Ensure the machine can handle your specific substrates, such as PTFE, graphite, rubber, or non-asbestos sheets. For high-volume production, look for CNC oscillating knife systems which offer cleaner edges than traditional die-cutting. Additionally, verify the effective cutting area matches your largest gasket dimensions and check for vacuum adsorption power to ensure materials remain stable during the cutting process.