Diamond files are a measurable production lever in tile and ceramic manufacturing — not a marketing accessory. When you match grit, bond and geometry to the correct station (trim, rectification, QC, premium finishing), you reduce rework, shorten finishing time and lower tool cost per square meter. This review gives engineering-ready guidance: grit ladder, bond trade-offs, KPI tests, procurement language, and a worked cost example that shows how a modest investment in diamond tools can reduce finishing cost per sqm by ~44% under realistic assumptions.
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